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tvnv17.c

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linux-6.19.14/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c C
  1/*
  2 * Copyright (C) 2009 Francisco Jerez.
  3 * All Rights Reserved.
  4 *
  5 * Permission is hereby granted, free of charge, to any person obtaining
  6 * a copy of this software and associated documentation files (the
  7 * "Software"), to deal in the Software without restriction, including
  8 * without limitation the rights to use, copy, modify, merge, publish,
  9 * distribute, sublicense, and/or sell copies of the Software, and to
 10 * permit persons to whom the Software is furnished to do so, subject to
 11 * the following conditions:
 12 *
 13 * The above copyright notice and this permission notice (including the
 14 * next paragraph) shall be included in all copies or substantial
 15 * portions of the Software.
 16 *
 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 20 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
 21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 24 *
 25 */
 26
 27#include <drm/drm_crtc_helper.h>
 28#include <drm/drm_modeset_helper_vtables.h>
 29#include <drm/drm_probe_helper.h>
 30#include "nouveau_drv.h"
 31#include "nouveau_reg.h"
 32#include "nouveau_encoder.h"
 33#include "nouveau_connector.h"
 34#include "nouveau_crtc.h"
 35#include "hw.h"
 36#include "tvnv17.h"
 37
 38MODULE_PARM_DESC(tv_norm, "Default TV norm.\n"
 39		 "\t\tSupported: PAL, PAL-M, PAL-N, PAL-Nc, NTSC-M, NTSC-J,\n"
 40		 "\t\t\thd480i, hd480p, hd576i, hd576p, hd720p, hd1080i.\n"
 41		 "\t\tDefault: PAL\n"
 42		 "\t\t*NOTE* Ignored for cards with external TV encoders.");
 43static char *nouveau_tv_norm;
 44module_param_named(tv_norm, nouveau_tv_norm, charp, 0400);
 45
 46static uint32_t nv42_tv_sample_load(struct drm_encoder *encoder)
 47{
 48	struct drm_device *dev = encoder->dev;
 49	struct nouveau_drm *drm = nouveau_drm(dev);
 50	struct nvkm_gpio *gpio = nvxx_gpio(drm);
 51	uint32_t testval, regoffset = nv04_dac_output_offset(encoder);
 52	uint32_t gpio0, gpio1, fp_htotal, fp_hsync_start, fp_hsync_end,
 53		fp_control, test_ctrl, dacclk, ctv_14, ctv_1c, ctv_6c;
 54	uint32_t sample = 0;
 55	int head;
 56
 57#define RGB_TEST_DATA(r, g, b) (r << 0 | g << 10 | b << 20)
 58	testval = RGB_TEST_DATA(0x82, 0xeb, 0x82);
 59	if (drm->vbios.tvdactestval)
 60		testval = drm->vbios.tvdactestval;
 61
 62	dacclk = NVReadRAMDAC(dev, 0, NV_PRAMDAC_DACCLK + regoffset);
 63	head = (dacclk & 0x100) >> 8;
 64
 65	/* Save the previous state. */
 66	gpio1 = nvkm_gpio_get(gpio, 0, DCB_GPIO_TVDAC1, 0xff);
 67	gpio0 = nvkm_gpio_get(gpio, 0, DCB_GPIO_TVDAC0, 0xff);
 68	fp_htotal = NVReadRAMDAC(dev, head, NV_PRAMDAC_FP_HTOTAL);
 69	fp_hsync_start = NVReadRAMDAC(dev, head, NV_PRAMDAC_FP_HSYNC_START);
 70	fp_hsync_end = NVReadRAMDAC(dev, head, NV_PRAMDAC_FP_HSYNC_END);
 71	fp_control = NVReadRAMDAC(dev, head, NV_PRAMDAC_FP_TG_CONTROL);
 72	test_ctrl = NVReadRAMDAC(dev, 0, NV_PRAMDAC_TEST_CONTROL + regoffset);
 73	ctv_1c = NVReadRAMDAC(dev, head, 0x680c1c);
 74	ctv_14 = NVReadRAMDAC(dev, head, 0x680c14);
 75	ctv_6c = NVReadRAMDAC(dev, head, 0x680c6c);
 76
 77	/* Prepare the DAC for load detection.  */
 78	nvkm_gpio_set(gpio, 0, DCB_GPIO_TVDAC1, 0xff, true);
 79	nvkm_gpio_set(gpio, 0, DCB_GPIO_TVDAC0, 0xff, true);
 80
 81	NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_HTOTAL, 1343);
 82	NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_HSYNC_START, 1047);
 83	NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_HSYNC_END, 1183);
 84	NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_TG_CONTROL,
 85		      NV_PRAMDAC_FP_TG_CONTROL_DISPEN_POS |
 86		      NV_PRAMDAC_FP_TG_CONTROL_WIDTH_12 |
 87		      NV_PRAMDAC_FP_TG_CONTROL_READ_PROG |
 88		      NV_PRAMDAC_FP_TG_CONTROL_HSYNC_POS |
 89		      NV_PRAMDAC_FP_TG_CONTROL_VSYNC_POS);
 90
 91	NVWriteRAMDAC(dev, 0, NV_PRAMDAC_TEST_CONTROL + regoffset, 0);
 92
 93	NVWriteRAMDAC(dev, 0, NV_PRAMDAC_DACCLK + regoffset,
 94		      (dacclk & ~0xff) | 0x22);
 95	msleep(1);
 96	NVWriteRAMDAC(dev, 0, NV_PRAMDAC_DACCLK + regoffset,
 97		      (dacclk & ~0xff) | 0x21);
 98
 99	NVWriteRAMDAC(dev, head, 0x680c1c, 1 << 20);
100	NVWriteRAMDAC(dev, head, 0x680c14, 4 << 16);
101
102	/* Sample pin 0x4 (usually S-video luma). */
103	NVWriteRAMDAC(dev, head, 0x680c6c, testval >> 10 & 0x3ff);
104	msleep(20);
105	sample |= NVReadRAMDAC(dev, 0, NV_PRAMDAC_TEST_CONTROL + regoffset)
106		& 0x4 << 28;
107
108	/* Sample the remaining pins. */
109	NVWriteRAMDAC(dev, head, 0x680c6c, testval & 0x3ff);
110	msleep(20);
111	sample |= NVReadRAMDAC(dev, 0, NV_PRAMDAC_TEST_CONTROL + regoffset)
112		& 0xa << 28;
113
114	/* Restore the previous state. */
115	NVWriteRAMDAC(dev, head, 0x680c1c, ctv_1c);
116	NVWriteRAMDAC(dev, head, 0x680c14, ctv_14);
117	NVWriteRAMDAC(dev, head, 0x680c6c, ctv_6c);
118	NVWriteRAMDAC(dev, 0, NV_PRAMDAC_DACCLK + regoffset, dacclk);
119	NVWriteRAMDAC(dev, 0, NV_PRAMDAC_TEST_CONTROL + regoffset, test_ctrl);
120	NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_TG_CONTROL, fp_control);
121	NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_HSYNC_END, fp_hsync_end);
122	NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_HSYNC_START, fp_hsync_start);
123	NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_HTOTAL, fp_htotal);
124	nvkm_gpio_set(gpio, 0, DCB_GPIO_TVDAC1, 0xff, gpio1);
125	nvkm_gpio_set(gpio, 0, DCB_GPIO_TVDAC0, 0xff, gpio0);
126
127	return sample;
128}
129
130static bool
131get_tv_detect_quirks(struct drm_device *dev, uint32_t *pin_mask)
132{
133	struct nouveau_drm *drm = nouveau_drm(dev);
134	struct nvkm_device *device = nvxx_device(drm);
135
136	if (device->quirk && device->quirk->tv_pin_mask) {
137		*pin_mask = device->quirk->tv_pin_mask;
138		return false;
139	}
140
141	return true;
142}
143
144static enum drm_connector_status
145nv17_tv_detect(struct drm_encoder *encoder, struct drm_connector *connector)
146{
147	struct drm_device *dev = encoder->dev;
148	struct nouveau_drm *drm = nouveau_drm(dev);
149	struct drm_mode_config *conf = &dev->mode_config;
150	struct nv17_tv_encoder *tv_enc = to_tv_enc(encoder);
151	struct dcb_output *dcb = tv_enc->base.dcb;
152	bool reliable = get_tv_detect_quirks(dev, &tv_enc->pin_mask);
153
154	if (nv04_dac_in_use(encoder))
155		return connector_status_disconnected;
156
157	if (reliable) {
158		if (drm->client.device.info.chipset == 0x42 ||
159		    drm->client.device.info.chipset == 0x43)
160			tv_enc->pin_mask =
161				nv42_tv_sample_load(encoder) >> 28 & 0xe;
162		else
163			tv_enc->pin_mask =
164				nv17_dac_sample_load(encoder) >> 28 & 0xe;
165	}
166
167	switch (tv_enc->pin_mask) {
168	case 0x2:
169	case 0x4:
170		tv_enc->subconnector = DRM_MODE_SUBCONNECTOR_Composite;
171		break;
172	case 0xc:
173		tv_enc->subconnector = DRM_MODE_SUBCONNECTOR_SVIDEO;
174		break;
175	case 0xe:
176		if (dcb->tvconf.has_component_output)
177			tv_enc->subconnector = DRM_MODE_SUBCONNECTOR_Component;
178		else
179			tv_enc->subconnector = DRM_MODE_SUBCONNECTOR_SCART;
180		break;
181	default:
182		tv_enc->subconnector = DRM_MODE_SUBCONNECTOR_Unknown;
183		break;
184	}
185
186	drm_object_property_set_value(&connector->base,
187					 conf->tv_subconnector_property,
188					 tv_enc->subconnector);
189
190	if (!reliable) {
191		return connector_status_unknown;
192	} else if (tv_enc->subconnector) {
193		NV_INFO(drm, "Load detected on output %c\n",
194			'@' + ffs(dcb->or));
195		return connector_status_connected;
196	} else {
197		return connector_status_disconnected;
198	}
199}
200
201static int nv17_tv_get_ld_modes(struct drm_encoder *encoder,
202				struct drm_connector *connector)
203{
204	struct nv17_tv_norm_params *tv_norm = get_tv_norm(encoder);
205	const struct drm_display_mode *tv_mode;
206	int n = 0;
207
208	for (tv_mode = nv17_tv_modes; tv_mode->hdisplay; tv_mode++) {
209		struct drm_display_mode *mode;
210
211		mode = drm_mode_duplicate(encoder->dev, tv_mode);
212		if (!mode)
213			continue;
214
215		mode->clock = tv_norm->tv_enc_mode.vrefresh *
216			mode->htotal / 1000 *
217			mode->vtotal / 1000;
218
219		if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
220			mode->clock *= 2;
221
222		if (mode->hdisplay == tv_norm->tv_enc_mode.hdisplay &&
223		    mode->vdisplay == tv_norm->tv_enc_mode.vdisplay)
224			mode->type |= DRM_MODE_TYPE_PREFERRED;
225
226		drm_mode_probed_add(connector, mode);
227		n++;
228	}
229
230	return n;
231}
232
233static int nv17_tv_get_hd_modes(struct drm_encoder *encoder,
234				struct drm_connector *connector)
235{
236	struct nv17_tv_norm_params *tv_norm = get_tv_norm(encoder);
237	struct drm_display_mode *output_mode = &tv_norm->ctv_enc_mode.mode;
238	struct drm_display_mode *mode;
239	const struct {
240		int hdisplay;
241		int vdisplay;
242	} modes[] = {
243		{ 640, 400 },
244		{ 640, 480 },
245		{ 720, 480 },
246		{ 720, 576 },
247		{ 800, 600 },
248		{ 1024, 768 },
249		{ 1280, 720 },
250		{ 1280, 1024 },
251		{ 1920, 1080 }
252	};
253	int i, n = 0;
254
255	for (i = 0; i < ARRAY_SIZE(modes); i++) {
256		if (modes[i].hdisplay > output_mode->hdisplay ||
257		    modes[i].vdisplay > output_mode->vdisplay)
258			continue;
259
260		if (modes[i].hdisplay == output_mode->hdisplay &&
261		    modes[i].vdisplay == output_mode->vdisplay) {
262			mode = drm_mode_duplicate(encoder->dev, output_mode);
263			if (!mode)
264				continue;
265			mode->type |= DRM_MODE_TYPE_PREFERRED;
266
267		} else {
268			mode = drm_cvt_mode(encoder->dev, modes[i].hdisplay,
269					    modes[i].vdisplay, 60, false,
270					    (output_mode->flags &
271					     DRM_MODE_FLAG_INTERLACE), false);
272			if (!mode)
273				continue;
274		}
275
276		/* CVT modes are sometimes unsuitable... */
277		if (output_mode->hdisplay <= 720
278		    || output_mode->hdisplay >= 1920) {
279			mode->htotal = output_mode->htotal;
280			mode->hsync_start = (mode->hdisplay + (mode->htotal
281					     - mode->hdisplay) * 9 / 10) & ~7;
282			mode->hsync_end = mode->hsync_start + 8;
283		}
284
285		if (output_mode->vdisplay >= 1024) {
286			mode->vtotal = output_mode->vtotal;
287			mode->vsync_start = output_mode->vsync_start;
288			mode->vsync_end = output_mode->vsync_end;
289		}
290
291		mode->type |= DRM_MODE_TYPE_DRIVER;
292		drm_mode_probed_add(connector, mode);
293		n++;
294	}
295
296	return n;
297}
298
299static int nv17_tv_get_modes(struct drm_encoder *encoder,
300			     struct drm_connector *connector)
301{
302	struct nv17_tv_norm_params *tv_norm = get_tv_norm(encoder);
303
304	if (tv_norm->kind == CTV_ENC_MODE)
305		return nv17_tv_get_hd_modes(encoder, connector);
306	else
307		return nv17_tv_get_ld_modes(encoder, connector);
308}
309
310static int nv17_tv_mode_valid(struct drm_encoder *encoder,
311			      const struct drm_display_mode *mode)
312{
313	struct nv17_tv_norm_params *tv_norm = get_tv_norm(encoder);
314
315	if (tv_norm->kind == CTV_ENC_MODE) {
316		struct drm_display_mode *output_mode =
317						&tv_norm->ctv_enc_mode.mode;
318
319		if (mode->clock > 400000)
320			return MODE_CLOCK_HIGH;
321
322		if (mode->hdisplay > output_mode->hdisplay ||
323		    mode->vdisplay > output_mode->vdisplay)
324			return MODE_BAD;
325
326		if ((mode->flags & DRM_MODE_FLAG_INTERLACE) !=
327		    (output_mode->flags & DRM_MODE_FLAG_INTERLACE))
328			return MODE_NO_INTERLACE;
329
330		if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
331			return MODE_NO_DBLESCAN;
332
333	} else {
334		const int vsync_tolerance = 600;
335
336		if (mode->clock > 70000)
337			return MODE_CLOCK_HIGH;
338
339		if (abs(drm_mode_vrefresh(mode) * 1000 -
340			tv_norm->tv_enc_mode.vrefresh) > vsync_tolerance)
341			return MODE_VSYNC;
342
343		/* The encoder takes care of the actual interlacing */
344		if (mode->flags & DRM_MODE_FLAG_INTERLACE)
345			return MODE_NO_INTERLACE;
346	}
347
348	return MODE_OK;
349}
350
351static bool nv17_tv_mode_fixup(struct drm_encoder *encoder,
352			       const struct drm_display_mode *mode,
353			       struct drm_display_mode *adjusted_mode)
354{
355	struct nv17_tv_norm_params *tv_norm = get_tv_norm(encoder);
356
357	if (nv04_dac_in_use(encoder))
358		return false;
359
360	if (tv_norm->kind == CTV_ENC_MODE)
361		adjusted_mode->clock = tv_norm->ctv_enc_mode.mode.clock;
362	else
363		adjusted_mode->clock = 90000;
364
365	return true;
366}
367
368static void  nv17_tv_dpms(struct drm_encoder *encoder, int mode)
369{
370	struct drm_device *dev = encoder->dev;
371	struct nouveau_drm *drm = nouveau_drm(dev);
372	struct nvkm_gpio *gpio = nvxx_gpio(drm);
373	struct nv17_tv_state *regs = &to_tv_enc(encoder)->state;
374	struct nv17_tv_norm_params *tv_norm = get_tv_norm(encoder);
375
376	if (nouveau_encoder(encoder)->last_dpms == mode)
377		return;
378	nouveau_encoder(encoder)->last_dpms = mode;
379
380	NV_INFO(drm, "Setting dpms mode %d on TV encoder (output %d)\n",
381		 mode, nouveau_encoder(encoder)->dcb->index);
382
383	regs->ptv_200 &= ~1;
384
385	if (tv_norm->kind == CTV_ENC_MODE) {
386		nv04_dfp_update_fp_control(encoder, mode);
387
388	} else {
389		nv04_dfp_update_fp_control(encoder, DRM_MODE_DPMS_OFF);
390
391		if (mode == DRM_MODE_DPMS_ON)
392			regs->ptv_200 |= 1;
393	}
394
395	nv_load_ptv(dev, regs, 200);
396
397	nvkm_gpio_set(gpio, 0, DCB_GPIO_TVDAC1, 0xff, mode == DRM_MODE_DPMS_ON);
398	nvkm_gpio_set(gpio, 0, DCB_GPIO_TVDAC0, 0xff, mode == DRM_MODE_DPMS_ON);
399
400	nv04_dac_update_dacclk(encoder, mode == DRM_MODE_DPMS_ON);
401}
402
403static void nv17_tv_prepare(struct drm_encoder *encoder)
404{
405	struct drm_device *dev = encoder->dev;
406	struct nouveau_drm *drm = nouveau_drm(dev);
407	const struct drm_encoder_helper_funcs *helper = encoder->helper_private;
408	struct nv17_tv_norm_params *tv_norm = get_tv_norm(encoder);
409	int head = nouveau_crtc(encoder->crtc)->index;
410	uint8_t *cr_lcd = &nv04_display(dev)->mode_reg.crtc_reg[head].CRTC[
411							NV_CIO_CRE_LCD__INDEX];
412	uint32_t dacclk_off = NV_PRAMDAC_DACCLK +
413					nv04_dac_output_offset(encoder);
414	uint32_t dacclk;
415
416	helper->dpms(encoder, DRM_MODE_DPMS_OFF);
417
418	nv04_dfp_disable(dev, head);
419
420	/* Unbind any FP encoders from this head if we need the FP
421	 * stuff enabled. */
422	if (tv_norm->kind == CTV_ENC_MODE) {
423		struct drm_encoder *enc;
424
425		list_for_each_entry(enc, &dev->mode_config.encoder_list, head) {
426			struct dcb_output *dcb = nouveau_encoder(enc)->dcb;
427
428			if ((dcb->type == DCB_OUTPUT_TMDS ||
429			     dcb->type == DCB_OUTPUT_LVDS) &&
430			     !enc->crtc &&
431			     nv04_dfp_get_bound_head(dev, dcb) == head) {
432				nv04_dfp_bind_head(dev, dcb, head ^ 1,
433						drm->vbios.fp.dual_link);
434			}
435		}
436
437	}
438
439	if (tv_norm->kind == CTV_ENC_MODE)
440		*cr_lcd |= 0x1 | (head ? 0x0 : 0x8);
441
442	/* Set the DACCLK register */
443	dacclk = (NVReadRAMDAC(dev, 0, dacclk_off) & ~0x30) | 0x1;
444
445	if (drm->client.device.info.family == NV_DEVICE_INFO_V0_CURIE)
446		dacclk |= 0x1a << 16;
447
448	if (tv_norm->kind == CTV_ENC_MODE) {
449		dacclk |=  0x20;
450
451		if (head)
452			dacclk |= 0x100;
453		else
454			dacclk &= ~0x100;
455
456	} else {
457		dacclk |= 0x10;
458
459	}
460
461	NVWriteRAMDAC(dev, 0, dacclk_off, dacclk);
462}
463
464static void nv17_tv_mode_set(struct drm_encoder *encoder,
465			     struct drm_display_mode *drm_mode,
466			     struct drm_display_mode *adjusted_mode)
467{
468	struct drm_device *dev = encoder->dev;
469	struct nouveau_drm *drm = nouveau_drm(dev);
470	int head = nouveau_crtc(encoder->crtc)->index;
471	struct nv04_crtc_reg *regs = &nv04_display(dev)->mode_reg.crtc_reg[head];
472	struct nv17_tv_state *tv_regs = &to_tv_enc(encoder)->state;
473	struct nv17_tv_norm_params *tv_norm = get_tv_norm(encoder);
474	int i;
475
476	regs->CRTC[NV_CIO_CRE_53] = 0x40; /* FP_HTIMING */
477	regs->CRTC[NV_CIO_CRE_54] = 0; /* FP_VTIMING */
478	regs->ramdac_630 = 0x2; /* turn off green mode (tv test pattern?) */
479	regs->tv_setup = 1;
480	regs->ramdac_8c0 = 0x0;
481
482	if (tv_norm->kind == TV_ENC_MODE) {
483		tv_regs->ptv_200 = 0x13111100;
484		if (head)
485			tv_regs->ptv_200 |= 0x10;
486
487		tv_regs->ptv_20c = 0x808010;
488		tv_regs->ptv_304 = 0x2d00000;
489		tv_regs->ptv_600 = 0x0;
490		tv_regs->ptv_60c = 0x0;
491		tv_regs->ptv_610 = 0x1e00000;
492
493		if (tv_norm->tv_enc_mode.vdisplay == 576) {
494			tv_regs->ptv_508 = 0x1200000;
495			tv_regs->ptv_614 = 0x33;
496
497		} else if (tv_norm->tv_enc_mode.vdisplay == 480) {
498			tv_regs->ptv_508 = 0xf00000;
499			tv_regs->ptv_614 = 0x13;
500		}
501
502		if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_RANKINE) {
503			tv_regs->ptv_500 = 0xe8e0;
504			tv_regs->ptv_504 = 0x1710;
505			tv_regs->ptv_604 = 0x0;
506			tv_regs->ptv_608 = 0x0;
507		} else {
508			if (tv_norm->tv_enc_mode.vdisplay == 576) {
509				tv_regs->ptv_604 = 0x20;
510				tv_regs->ptv_608 = 0x10;
511				tv_regs->ptv_500 = 0x19710;
512				tv_regs->ptv_504 = 0x68f0;
513
514			} else if (tv_norm->tv_enc_mode.vdisplay == 480) {
515				tv_regs->ptv_604 = 0x10;
516				tv_regs->ptv_608 = 0x20;
517				tv_regs->ptv_500 = 0x4b90;
518				tv_regs->ptv_504 = 0x1b480;
519			}
520		}
521
522		for (i = 0; i < 0x40; i++)
523			tv_regs->tv_enc[i] = tv_norm->tv_enc_mode.tv_enc[i];
524
525	} else {
526		struct drm_display_mode *output_mode =
527						&tv_norm->ctv_enc_mode.mode;
528
529		/* The registers in PRAMDAC+0xc00 control some timings and CSC
530		 * parameters for the CTV encoder (It's only used for "HD" TV
531		 * modes, I don't think I have enough working to guess what
532		 * they exactly mean...), it's probably connected at the
533		 * output of the FP encoder, but it also needs the analog
534		 * encoder in its OR enabled and routed to the head it's
535		 * using. It's enabled with the DACCLK register, bits [5:4].
536		 */
537		for (i = 0; i < 38; i++)
538			regs->ctv_regs[i] = tv_norm->ctv_enc_mode.ctv_regs[i];
539
540		regs->fp_horiz_regs[FP_DISPLAY_END] = output_mode->hdisplay - 1;
541		regs->fp_horiz_regs[FP_TOTAL] = output_mode->htotal - 1;
542		regs->fp_horiz_regs[FP_SYNC_START] =
543						output_mode->hsync_start - 1;
544		regs->fp_horiz_regs[FP_SYNC_END] = output_mode->hsync_end - 1;
545		regs->fp_horiz_regs[FP_CRTC] = output_mode->hdisplay +
546			max((output_mode->hdisplay-600)/40 - 1, 1);
547
548		regs->fp_vert_regs[FP_DISPLAY_END] = output_mode->vdisplay - 1;
549		regs->fp_vert_regs[FP_TOTAL] = output_mode->vtotal - 1;
550		regs->fp_vert_regs[FP_SYNC_START] =
551						output_mode->vsync_start - 1;
552		regs->fp_vert_regs[FP_SYNC_END] = output_mode->vsync_end - 1;
553		regs->fp_vert_regs[FP_CRTC] = output_mode->vdisplay - 1;
554
555		regs->fp_control = NV_PRAMDAC_FP_TG_CONTROL_DISPEN_POS |
556			NV_PRAMDAC_FP_TG_CONTROL_READ_PROG |
557			NV_PRAMDAC_FP_TG_CONTROL_WIDTH_12;
558
559		if (output_mode->flags & DRM_MODE_FLAG_PVSYNC)
560			regs->fp_control |= NV_PRAMDAC_FP_TG_CONTROL_VSYNC_POS;
561		if (output_mode->flags & DRM_MODE_FLAG_PHSYNC)
562			regs->fp_control |= NV_PRAMDAC_FP_TG_CONTROL_HSYNC_POS;
563
564		regs->fp_debug_0 = NV_PRAMDAC_FP_DEBUG_0_YWEIGHT_ROUND |
565			NV_PRAMDAC_FP_DEBUG_0_XWEIGHT_ROUND |
566			NV_PRAMDAC_FP_DEBUG_0_YINTERP_BILINEAR |
567			NV_PRAMDAC_FP_DEBUG_0_XINTERP_BILINEAR |
568			NV_RAMDAC_FP_DEBUG_0_TMDS_ENABLED |
569			NV_PRAMDAC_FP_DEBUG_0_YSCALE_ENABLE |
570			NV_PRAMDAC_FP_DEBUG_0_XSCALE_ENABLE;
571
572		regs->fp_debug_2 = 0;
573
574		regs->fp_margin_color = 0x801080;
575
576	}
577}
578
579static void nv17_tv_commit(struct drm_encoder *encoder)
580{
581	struct drm_device *dev = encoder->dev;
582	struct nouveau_drm *drm = nouveau_drm(dev);
583	struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc);
584	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
585	const struct drm_encoder_helper_funcs *helper = encoder->helper_private;
586
587	if (get_tv_norm(encoder)->kind == TV_ENC_MODE) {
588		nv17_tv_update_rescaler(encoder);
589		nv17_tv_update_properties(encoder);
590	} else {
591		nv17_ctv_update_rescaler(encoder);
592	}
593
594	nv17_tv_state_load(dev, &to_tv_enc(encoder)->state);
595
596	/* This could use refinement for flatpanels, but it should work */
597	if (drm->client.device.info.chipset < 0x44)
598		NVWriteRAMDAC(dev, 0, NV_PRAMDAC_TEST_CONTROL +
599					nv04_dac_output_offset(encoder),
600					0xf0000000);
601	else
602		NVWriteRAMDAC(dev, 0, NV_PRAMDAC_TEST_CONTROL +
603					nv04_dac_output_offset(encoder),
604					0x00100000);
605
606	helper->dpms(encoder, DRM_MODE_DPMS_ON);
607
608	NV_INFO(drm, "Output %s is running on CRTC %d using output %c\n",
609		nv04_encoder_get_connector(nv_encoder)->base.name,
610		nv_crtc->index, '@' + ffs(nv_encoder->dcb->or));
611}
612
613static void nv17_tv_save(struct drm_encoder *encoder)
614{
615	struct drm_device *dev = encoder->dev;
616	struct nv17_tv_encoder *tv_enc = to_tv_enc(encoder);
617
618	nouveau_encoder(encoder)->restore.output =
619					NVReadRAMDAC(dev, 0,
620					NV_PRAMDAC_DACCLK +
621					nv04_dac_output_offset(encoder));
622
623	nv17_tv_state_save(dev, &tv_enc->saved_state);
624
625	tv_enc->state.ptv_200 = tv_enc->saved_state.ptv_200;
626}
627
628static void nv17_tv_restore(struct drm_encoder *encoder)
629{
630	struct drm_device *dev = encoder->dev;
631
632	NVWriteRAMDAC(dev, 0, NV_PRAMDAC_DACCLK +
633				nv04_dac_output_offset(encoder),
634				nouveau_encoder(encoder)->restore.output);
635
636	nv17_tv_state_load(dev, &to_tv_enc(encoder)->saved_state);
637
638	nouveau_encoder(encoder)->last_dpms = NV_DPMS_CLEARED;
639}
640
641static int nv17_tv_create_resources(struct drm_encoder *encoder,
642				    struct drm_connector *connector)
643{
644	struct drm_device *dev = encoder->dev;
645	struct nouveau_drm *drm = nouveau_drm(dev);
646	struct drm_mode_config *conf = &dev->mode_config;
647	struct nv17_tv_encoder *tv_enc = to_tv_enc(encoder);
648	struct dcb_output *dcb = nouveau_encoder(encoder)->dcb;
649	int num_tv_norms = dcb->tvconf.has_component_output ? NUM_TV_NORMS :
650							NUM_LD_TV_NORMS;
651	int i;
652
653	if (nouveau_tv_norm) {
654		i = match_string(nv17_tv_norm_names, num_tv_norms,
655				 nouveau_tv_norm);
656		if (i < 0)
657			NV_WARN(drm, "Invalid TV norm setting \"%s\"\n",
658				nouveau_tv_norm);
659		else
660			tv_enc->tv_norm = i;
661	}
662
663	drm_mode_create_tv_properties_legacy(dev, num_tv_norms, nv17_tv_norm_names);
664
665	drm_object_attach_property(&connector->base,
666					conf->tv_select_subconnector_property,
667					tv_enc->select_subconnector);
668	drm_object_attach_property(&connector->base,
669					conf->tv_subconnector_property,
670					tv_enc->subconnector);
671	drm_object_attach_property(&connector->base,
672					conf->legacy_tv_mode_property,
673					tv_enc->tv_norm);
674	drm_object_attach_property(&connector->base,
675					conf->tv_flicker_reduction_property,
676					tv_enc->flicker);
677	drm_object_attach_property(&connector->base,
678					conf->tv_saturation_property,
679					tv_enc->saturation);
680	drm_object_attach_property(&connector->base,
681					conf->tv_hue_property,
682					tv_enc->hue);
683	drm_object_attach_property(&connector->base,
684					conf->tv_overscan_property,
685					tv_enc->overscan);
686
687	return 0;
688}
689
690static int nv17_tv_set_property(struct drm_encoder *encoder,
691				struct drm_connector *connector,
692				struct drm_property *property,
693				uint64_t val)
694{
695	struct drm_mode_config *conf = &encoder->dev->mode_config;
696	struct drm_crtc *crtc = encoder->crtc;
697	struct nv17_tv_encoder *tv_enc = to_tv_enc(encoder);
698	struct nv17_tv_norm_params *tv_norm = get_tv_norm(encoder);
699	bool modes_changed = false;
700
701	if (property == conf->tv_overscan_property) {
702		tv_enc->overscan = val;
703		if (encoder->crtc) {
704			if (tv_norm->kind == CTV_ENC_MODE)
705				nv17_ctv_update_rescaler(encoder);
706			else
707				nv17_tv_update_rescaler(encoder);
708		}
709
710	} else if (property == conf->tv_saturation_property) {
711		if (tv_norm->kind != TV_ENC_MODE)
712			return -EINVAL;
713
714		tv_enc->saturation = val;
715		nv17_tv_update_properties(encoder);
716
717	} else if (property == conf->tv_hue_property) {
718		if (tv_norm->kind != TV_ENC_MODE)
719			return -EINVAL;
720
721		tv_enc->hue = val;
722		nv17_tv_update_properties(encoder);
723
724	} else if (property == conf->tv_flicker_reduction_property) {
725		if (tv_norm->kind != TV_ENC_MODE)
726			return -EINVAL;
727
728		tv_enc->flicker = val;
729		if (encoder->crtc)
730			nv17_tv_update_rescaler(encoder);
731
732	} else if (property == conf->legacy_tv_mode_property) {
733		if (connector->dpms != DRM_MODE_DPMS_OFF)
734			return -EINVAL;
735
736		tv_enc->tv_norm = val;
737
738		modes_changed = true;
739
740	} else if (property == conf->tv_select_subconnector_property) {
741		if (tv_norm->kind != TV_ENC_MODE)
742			return -EINVAL;
743
744		tv_enc->select_subconnector = val;
745		nv17_tv_update_properties(encoder);
746
747	} else {
748		return -EINVAL;
749	}
750
751	if (modes_changed) {
752		drm_helper_probe_single_connector_modes(connector, 0, 0);
753
754		/* Disable the crtc to ensure a full modeset is
755		 * performed whenever it's turned on again. */
756		if (crtc)
757			drm_crtc_helper_set_mode(crtc, &crtc->mode,
758						 crtc->x, crtc->y,
759						 crtc->primary->fb);
760	}
761
762	return 0;
763}
764
765static void nv17_tv_destroy(struct drm_encoder *encoder)
766{
767	struct nv17_tv_encoder *tv_enc = to_tv_enc(encoder);
768
769	drm_encoder_cleanup(encoder);
770	kfree(tv_enc);
771}
772
773static const struct drm_encoder_helper_funcs nv17_tv_helper_funcs = {
774	.dpms = nv17_tv_dpms,
775	.mode_fixup = nv17_tv_mode_fixup,
776	.prepare = nv17_tv_prepare,
777	.commit = nv17_tv_commit,
778	.mode_set = nv17_tv_mode_set,
779	.detect = nv17_tv_detect,
780};
781
782static const struct nouveau_i2c_encoder_funcs nv17_tv_encoder_i2c_funcs = {
783	.get_modes = nv17_tv_get_modes,
784	.mode_valid = nv17_tv_mode_valid,
785	.create_resources = nv17_tv_create_resources,
786	.set_property = nv17_tv_set_property,
787};
788
789static const struct drm_encoder_funcs nv17_tv_funcs = {
790	.destroy = nv17_tv_destroy,
791};
792
793int
794nv17_tv_create(struct drm_connector *connector, struct dcb_output *entry)
795{
796	struct drm_device *dev = connector->dev;
797	struct drm_encoder *encoder;
798	struct nv17_tv_encoder *tv_enc = NULL;
799
800	tv_enc = kzalloc(sizeof(*tv_enc), GFP_KERNEL);
801	if (!tv_enc)
802		return -ENOMEM;
803
804	tv_enc->overscan = 50;
805	tv_enc->flicker = 50;
806	tv_enc->saturation = 50;
807	tv_enc->hue = 0;
808	tv_enc->tv_norm = TV_NORM_PAL;
809	tv_enc->subconnector = DRM_MODE_SUBCONNECTOR_Unknown;
810	tv_enc->select_subconnector = DRM_MODE_SUBCONNECTOR_Automatic;
811	tv_enc->pin_mask = 0;
812
813	encoder = to_drm_encoder(&tv_enc->base);
814
815	tv_enc->base.dcb = entry;
816	tv_enc->base.or = ffs(entry->or) - 1;
817
818	drm_encoder_init(dev, encoder, &nv17_tv_funcs, DRM_MODE_ENCODER_TVDAC,
819			 NULL);
820	drm_encoder_helper_add(encoder, &nv17_tv_helper_funcs);
821	to_encoder_i2c(encoder)->encoder_i2c_funcs = &nv17_tv_encoder_i2c_funcs;
822
823	tv_enc->base.enc_save = nv17_tv_save;
824	tv_enc->base.enc_restore = nv17_tv_restore;
825
826	encoder->possible_crtcs = entry->heads;
827	encoder->possible_clones = 0;
828
829	nv17_tv_create_resources(encoder, connector);
830	drm_connector_attach_encoder(connector, encoder);
831	return 0;
832}
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