[net-next-2.6.git] / drivers / gpu / drm / nouveau / nv50_dac.c

/*
 * Copyright (C) 2008 Maarten Maathuis.
 * All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial
 * portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 */

#include "drmP.h"
#include "drm_crtc_helper.h"

#define NOUVEAU_DMA_DEBUG (nouveau_reg_debug & NOUVEAU_REG_DEBUG_EVO)
#include "nouveau_reg.h"
#include "nouveau_drv.h"
#include "nouveau_dma.h"
#include "nouveau_encoder.h"
#include "nouveau_connector.h"
#include "nouveau_crtc.h"
#include "nv50_display.h"

static void
nv50_dac_disconnect(struct drm_encoder *encoder)
{
	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
	struct drm_device *dev = encoder->dev;
	struct drm_nouveau_private *dev_priv = dev->dev_private;
	struct nouveau_channel *evo = dev_priv->evo;
	int ret;

	if (!nv_encoder->crtc)
		return;
	nv50_crtc_blank(nouveau_crtc(nv_encoder->crtc), true);

	NV_DEBUG_KMS(dev, "Disconnecting DAC %d\n", nv_encoder->or);

	ret = RING_SPACE(evo, 4);
	if (ret) {
		NV_ERROR(dev, "no space while disconnecting DAC\n");
		return;
	}
	BEGIN_RING(evo, 0, NV50_EVO_DAC(nv_encoder->or, MODE_CTRL), 1);
	OUT_RING  (evo, 0);
	BEGIN_RING(evo, 0, NV50_EVO_UPDATE, 1);
	OUT_RING  (evo, 0);

	nv_encoder->crtc = NULL;
}

static enum drm_connector_status
nv50_dac_detect(struct drm_encoder *encoder, struct drm_connector *connector)
{
	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
	struct drm_device *dev = encoder->dev;
	struct drm_nouveau_private *dev_priv = dev->dev_private;
	enum drm_connector_status status = connector_status_disconnected;
	uint32_t dpms_state, load_pattern, load_state;
	int or = nv_encoder->or;

	nv_wr32(dev, NV50_PDISPLAY_DAC_CLK_CTRL1(or), 0x00000001);
	dpms_state = nv_rd32(dev, NV50_PDISPLAY_DAC_DPMS_CTRL(or));

	nv_wr32(dev, NV50_PDISPLAY_DAC_DPMS_CTRL(or),
		0x00150000 | NV50_PDISPLAY_DAC_DPMS_CTRL_PENDING);
	if (!nv_wait(dev, NV50_PDISPLAY_DAC_DPMS_CTRL(or),
		     NV50_PDISPLAY_DAC_DPMS_CTRL_PENDING, 0)) {
		NV_ERROR(dev, "timeout: DAC_DPMS_CTRL_PENDING(%d) == 0\n", or);
		NV_ERROR(dev, "DAC_DPMS_CTRL(%d) = 0x%08x\n", or,
			  nv_rd32(dev, NV50_PDISPLAY_DAC_DPMS_CTRL(or)));
		return status;
	}

	/* Use bios provided value if possible. */
	if (dev_priv->vbios.dactestval) {
		load_pattern = dev_priv->vbios.dactestval;
		NV_DEBUG_KMS(dev, "Using bios provided load_pattern of %d\n",
			  load_pattern);
	} else {
		load_pattern = 340;
		NV_DEBUG_KMS(dev, "Using default load_pattern of %d\n",
			 load_pattern);
	}

	nv_wr32(dev, NV50_PDISPLAY_DAC_LOAD_CTRL(or),
		NV50_PDISPLAY_DAC_LOAD_CTRL_ACTIVE | load_pattern);
	mdelay(45); /* give it some time to process */
	load_state = nv_rd32(dev, NV50_PDISPLAY_DAC_LOAD_CTRL(or));

	nv_wr32(dev, NV50_PDISPLAY_DAC_LOAD_CTRL(or), 0);
	nv_wr32(dev, NV50_PDISPLAY_DAC_DPMS_CTRL(or), dpms_state |
		NV50_PDISPLAY_DAC_DPMS_CTRL_PENDING);

	if ((load_state & NV50_PDISPLAY_DAC_LOAD_CTRL_PRESENT) ==
			  NV50_PDISPLAY_DAC_LOAD_CTRL_PRESENT)
		status = connector_status_connected;

	if (status == connector_status_connected)
		NV_DEBUG_KMS(dev, "Load was detected on output with or %d\n", or);
	else
		NV_DEBUG_KMS(dev, "Load was not detected on output with or %d\n", or);

	return status;
}

static void
nv50_dac_dpms(struct drm_encoder *encoder, int mode)
{
	struct drm_device *dev = encoder->dev;
	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
	uint32_t val;
	int or = nv_encoder->or;

	NV_DEBUG_KMS(dev, "or %d mode %d\n", or, mode);

	/* wait for it to be done */
	if (!nv_wait(dev, NV50_PDISPLAY_DAC_DPMS_CTRL(or),
		     NV50_PDISPLAY_DAC_DPMS_CTRL_PENDING, 0)) {
		NV_ERROR(dev, "timeout: DAC_DPMS_CTRL_PENDING(%d) == 0\n", or);
		NV_ERROR(dev, "DAC_DPMS_CTRL(%d) = 0x%08x\n", or,
			 nv_rd32(dev, NV50_PDISPLAY_DAC_DPMS_CTRL(or)));
		return;
	}

	val = nv_rd32(dev, NV50_PDISPLAY_DAC_DPMS_CTRL(or)) & ~0x7F;

	if (mode != DRM_MODE_DPMS_ON)
		val |= NV50_PDISPLAY_DAC_DPMS_CTRL_BLANKED;

	switch (mode) {
	case DRM_MODE_DPMS_STANDBY:
		val |= NV50_PDISPLAY_DAC_DPMS_CTRL_HSYNC_OFF;
		break;
	case DRM_MODE_DPMS_SUSPEND:
		val |= NV50_PDISPLAY_DAC_DPMS_CTRL_VSYNC_OFF;
		break;
	case DRM_MODE_DPMS_OFF:
		val |= NV50_PDISPLAY_DAC_DPMS_CTRL_OFF;
		val |= NV50_PDISPLAY_DAC_DPMS_CTRL_HSYNC_OFF;
		val |= NV50_PDISPLAY_DAC_DPMS_CTRL_VSYNC_OFF;
		break;
	default:
		break;
	}

	nv_wr32(dev, NV50_PDISPLAY_DAC_DPMS_CTRL(or), val |
		NV50_PDISPLAY_DAC_DPMS_CTRL_PENDING);
}

static void
nv50_dac_save(struct drm_encoder *encoder)
{
	NV_ERROR(encoder->dev, "!!\n");
}

static void
nv50_dac_restore(struct drm_encoder *encoder)
{
	NV_ERROR(encoder->dev, "!!\n");
}

static bool
nv50_dac_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode,
		    struct drm_display_mode *adjusted_mode)
{
	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
	struct nouveau_connector *connector;

	NV_DEBUG_KMS(encoder->dev, "or %d\n", nv_encoder->or);

	connector = nouveau_encoder_connector_get(nv_encoder);
	if (!connector) {
		NV_ERROR(encoder->dev, "Encoder has no connector\n");
		return false;
	}

	if (connector->scaling_mode != DRM_MODE_SCALE_NONE &&
	     connector->native_mode) {
		int id = adjusted_mode->base.id;
		*adjusted_mode = *connector->native_mode;
		adjusted_mode->base.id = id;
	}

	return true;
}

static void
nv50_dac_prepare(struct drm_encoder *encoder)
{
}

static void
nv50_dac_commit(struct drm_encoder *encoder)
{
}

static void
nv50_dac_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode,
		  struct drm_display_mode *adjusted_mode)
{
	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
	struct drm_device *dev = encoder->dev;
	struct drm_nouveau_private *dev_priv = dev->dev_private;
	struct nouveau_channel *evo = dev_priv->evo;
	struct nouveau_crtc *crtc = nouveau_crtc(encoder->crtc);
	uint32_t mode_ctl = 0, mode_ctl2 = 0;
	int ret;

	NV_DEBUG_KMS(dev, "or %d type %d crtc %d\n",
		     nv_encoder->or, nv_encoder->dcb->type, crtc->index);

	nv50_dac_dpms(encoder, DRM_MODE_DPMS_ON);

	if (crtc->index == 1)
		mode_ctl |= NV50_EVO_DAC_MODE_CTRL_CRTC1;
	else
		mode_ctl |= NV50_EVO_DAC_MODE_CTRL_CRTC0;

	/* Lacking a working tv-out, this is not a 100% sure. */
	if (nv_encoder->dcb->type == OUTPUT_ANALOG)
		mode_ctl |= 0x40;
	else
	if (nv_encoder->dcb->type == OUTPUT_TV)
		mode_ctl |= 0x100;

	if (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC)
		mode_ctl2 |= NV50_EVO_DAC_MODE_CTRL2_NHSYNC;

	if (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC)
		mode_ctl2 |= NV50_EVO_DAC_MODE_CTRL2_NVSYNC;

	ret = RING_SPACE(evo, 3);
	if (ret) {
		NV_ERROR(dev, "no space while connecting DAC\n");
		return;
	}
	BEGIN_RING(evo, 0, NV50_EVO_DAC(nv_encoder->or, MODE_CTRL), 2);
	OUT_RING(evo, mode_ctl);
	OUT_RING(evo, mode_ctl2);

	nv_encoder->crtc = encoder->crtc;
}

static struct drm_crtc *
nv50_dac_crtc_get(struct drm_encoder *encoder)
{
	return nouveau_encoder(encoder)->crtc;
}

static const struct drm_encoder_helper_funcs nv50_dac_helper_funcs = {
	.dpms = nv50_dac_dpms,
	.save = nv50_dac_save,
	.restore = nv50_dac_restore,
	.mode_fixup = nv50_dac_mode_fixup,
	.prepare = nv50_dac_prepare,
	.commit = nv50_dac_commit,
	.mode_set = nv50_dac_mode_set,
	.get_crtc = nv50_dac_crtc_get,
	.detect = nv50_dac_detect,
	.disable = nv50_dac_disconnect
};

static void
nv50_dac_destroy(struct drm_encoder *encoder)
{
	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);

	if (!encoder)
		return;

	NV_DEBUG_KMS(encoder->dev, "\n");

	drm_encoder_cleanup(encoder);
	kfree(nv_encoder);
}

static const struct drm_encoder_funcs nv50_dac_encoder_funcs = {
	.destroy = nv50_dac_destroy,
};

int
nv50_dac_create(struct drm_connector *connector, struct dcb_entry *entry)
{
	struct nouveau_encoder *nv_encoder;
	struct drm_encoder *encoder;

	nv_encoder = kzalloc(sizeof(*nv_encoder), GFP_KERNEL);
	if (!nv_encoder)
		return -ENOMEM;
	encoder = to_drm_encoder(nv_encoder);

	nv_encoder->dcb = entry;
	nv_encoder->or = ffs(entry->or) - 1;

	drm_encoder_init(connector->dev, encoder, &nv50_dac_encoder_funcs,
			 DRM_MODE_ENCODER_DAC);
	drm_encoder_helper_add(encoder, &nv50_dac_helper_funcs);

	encoder->possible_crtcs = entry->heads;
	encoder->possible_clones = 0;

	drm_mode_connector_attach_encoder(connector, encoder);
	return 0;
}
Commit	Line	Data
6ee73861 BS	1	/*
	2	* Copyright (C) 2008 Maarten Maathuis.
	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 "drmP.h"
	28	#include "drm_crtc_helper.h"
	29
	30	#define NOUVEAU_DMA_DEBUG (nouveau_reg_debug & NOUVEAU_REG_DEBUG_EVO)
	31	#include "nouveau_reg.h"
	32	#include "nouveau_drv.h"
	33	#include "nouveau_dma.h"
	34	#include "nouveau_encoder.h"
	35	#include "nouveau_connector.h"
	36	#include "nouveau_crtc.h"
	37	#include "nv50_display.h"
	38
	39	static void
ec7fc4a1	40	nv50_dac_disconnect(struct drm_encoder *encoder)
6ee73861	41	{
ec7fc4a1 BS	42	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
ec7fc4a1 BS	43	struct drm_device *dev = encoder->dev;
6ee73861 BS	44	struct drm_nouveau_private *dev_priv = dev->dev_private;
	45	struct nouveau_channel *evo = dev_priv->evo;
	46	int ret;
	47
ec7fc4a1 BS	48	if (!nv_encoder->crtc)
ec7fc4a1 BS	49	return;
835aadbe	50	nv50_crtc_blank(nouveau_crtc(nv_encoder->crtc), true);
ec7fc4a1	51
ef2bb506	52	NV_DEBUG_KMS(dev, "Disconnecting DAC %d\n", nv_encoder->or);
6ee73861	53
835aadbe	54	ret = RING_SPACE(evo, 4);
6ee73861 BS	55	if (ret) {
	56	NV_ERROR(dev, "no space while disconnecting DAC\n");
	57	return;
	58	}
	59	BEGIN_RING(evo, 0, NV50_EVO_DAC(nv_encoder->or, MODE_CTRL), 1);
835aadbe BS	60	OUT_RING (evo, 0);
	61	BEGIN_RING(evo, 0, NV50_EVO_UPDATE, 1);
	62	OUT_RING (evo, 0);
ec7fc4a1 BS	63
ec7fc4a1 BS	64	nv_encoder->crtc = NULL;
6ee73861 BS	65	}
	66
	67	static enum drm_connector_status
	68	nv50_dac_detect(struct drm_encoder encoder, struct drm_connector connector)
	69	{
	70	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
	71	struct drm_device *dev = encoder->dev;
	72	struct drm_nouveau_private *dev_priv = dev->dev_private;
	73	enum drm_connector_status status = connector_status_disconnected;
	74	uint32_t dpms_state, load_pattern, load_state;
	75	int or = nv_encoder->or;
	76
	77	nv_wr32(dev, NV50_PDISPLAY_DAC_CLK_CTRL1(or), 0x00000001);
	78	dpms_state = nv_rd32(dev, NV50_PDISPLAY_DAC_DPMS_CTRL(or));
	79
	80	nv_wr32(dev, NV50_PDISPLAY_DAC_DPMS_CTRL(or),
	81	0x00150000 \| NV50_PDISPLAY_DAC_DPMS_CTRL_PENDING);
4b5c152a	82	if (!nv_wait(dev, NV50_PDISPLAY_DAC_DPMS_CTRL(or),
6ee73861 BS	83	NV50_PDISPLAY_DAC_DPMS_CTRL_PENDING, 0)) {
	84	NV_ERROR(dev, "timeout: DAC_DPMS_CTRL_PENDING(%d) == 0\n", or);
	85	NV_ERROR(dev, "DAC_DPMS_CTRL(%d) = 0x%08x\n", or,
	86	nv_rd32(dev, NV50_PDISPLAY_DAC_DPMS_CTRL(or)));
	87	return status;
	88	}
	89
	90	/* Use bios provided value if possible. */
04a39c57 BS	91	if (dev_priv->vbios.dactestval) {
04a39c57 BS	92	load_pattern = dev_priv->vbios.dactestval;
ef2bb506	93	NV_DEBUG_KMS(dev, "Using bios provided load_pattern of %d\n",
6ee73861 BS	94	load_pattern);
	95	} else {
	96	load_pattern = 340;
ef2bb506	97	NV_DEBUG_KMS(dev, "Using default load_pattern of %d\n",
6ee73861 BS	98	load_pattern);
	99	}
	100
	101	nv_wr32(dev, NV50_PDISPLAY_DAC_LOAD_CTRL(or),
	102	NV50_PDISPLAY_DAC_LOAD_CTRL_ACTIVE \| load_pattern);
	103	mdelay(45); /* give it some time to process */
	104	load_state = nv_rd32(dev, NV50_PDISPLAY_DAC_LOAD_CTRL(or));
	105
	106	nv_wr32(dev, NV50_PDISPLAY_DAC_LOAD_CTRL(or), 0);
	107	nv_wr32(dev, NV50_PDISPLAY_DAC_DPMS_CTRL(or), dpms_state \|
	108	NV50_PDISPLAY_DAC_DPMS_CTRL_PENDING);
	109
	110	if ((load_state & NV50_PDISPLAY_DAC_LOAD_CTRL_PRESENT) ==
	111	NV50_PDISPLAY_DAC_LOAD_CTRL_PRESENT)
	112	status = connector_status_connected;
	113
	114	if (status == connector_status_connected)
ef2bb506	115	NV_DEBUG_KMS(dev, "Load was detected on output with or %d\n", or);
6ee73861	116	else
ef2bb506	117	NV_DEBUG_KMS(dev, "Load was not detected on output with or %d\n", or);
6ee73861 BS	118
	119	return status;
	120	}
	121
	122	static void
	123	nv50_dac_dpms(struct drm_encoder *encoder, int mode)
	124	{
	125	struct drm_device *dev = encoder->dev;
	126	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
	127	uint32_t val;
	128	int or = nv_encoder->or;
	129
ef2bb506	130	NV_DEBUG_KMS(dev, "or %d mode %d\n", or, mode);
6ee73861 BS	131
6ee73861 BS	132	/* wait for it to be done */
4b5c152a	133	if (!nv_wait(dev, NV50_PDISPLAY_DAC_DPMS_CTRL(or),
6ee73861 BS	134	NV50_PDISPLAY_DAC_DPMS_CTRL_PENDING, 0)) {
	135	NV_ERROR(dev, "timeout: DAC_DPMS_CTRL_PENDING(%d) == 0\n", or);
	136	NV_ERROR(dev, "DAC_DPMS_CTRL(%d) = 0x%08x\n", or,
	137	nv_rd32(dev, NV50_PDISPLAY_DAC_DPMS_CTRL(or)));
	138	return;
	139	}
	140
	141	val = nv_rd32(dev, NV50_PDISPLAY_DAC_DPMS_CTRL(or)) & ~0x7F;
	142
	143	if (mode != DRM_MODE_DPMS_ON)
	144	val \|= NV50_PDISPLAY_DAC_DPMS_CTRL_BLANKED;
	145
	146	switch (mode) {
	147	case DRM_MODE_DPMS_STANDBY:
	148	val \|= NV50_PDISPLAY_DAC_DPMS_CTRL_HSYNC_OFF;
	149	break;
	150	case DRM_MODE_DPMS_SUSPEND:
	151	val \|= NV50_PDISPLAY_DAC_DPMS_CTRL_VSYNC_OFF;
	152	break;
	153	case DRM_MODE_DPMS_OFF:
	154	val \|= NV50_PDISPLAY_DAC_DPMS_CTRL_OFF;
	155	val \|= NV50_PDISPLAY_DAC_DPMS_CTRL_HSYNC_OFF;
	156	val \|= NV50_PDISPLAY_DAC_DPMS_CTRL_VSYNC_OFF;
	157	break;
	158	default:
	159	break;
	160	}
	161
	162	nv_wr32(dev, NV50_PDISPLAY_DAC_DPMS_CTRL(or), val \|
	163	NV50_PDISPLAY_DAC_DPMS_CTRL_PENDING);
	164	}
	165
	166	static void
	167	nv50_dac_save(struct drm_encoder *encoder)
	168	{
	169	NV_ERROR(encoder->dev, "!!\n");
	170	}
	171
	172	static void
	173	nv50_dac_restore(struct drm_encoder *encoder)
	174	{
	175	NV_ERROR(encoder->dev, "!!\n");
	176	}
	177
	178	static bool
	179	nv50_dac_mode_fixup(struct drm_encoder encoder, struct drm_display_mode mode,
	180	struct drm_display_mode *adjusted_mode)
	181	{
	182	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
	183	struct nouveau_connector *connector;
	184
ef2bb506	185	NV_DEBUG_KMS(encoder->dev, "or %d\n", nv_encoder->or);
6ee73861 BS	186
	187	connector = nouveau_encoder_connector_get(nv_encoder);
	188	if (!connector) {
	189	NV_ERROR(encoder->dev, "Encoder has no connector\n");
	190	return false;
	191	}
	192
	193	if (connector->scaling_mode != DRM_MODE_SCALE_NONE &&
	194	connector->native_mode) {
	195	int id = adjusted_mode->base.id;
	196	adjusted_mode = connector->native_mode;
	197	adjusted_mode->base.id = id;
	198	}
	199
	200	return true;
	201	}
	202
	203	static void
	204	nv50_dac_prepare(struct drm_encoder *encoder)
	205	{
	206	}
	207
	208	static void
	209	nv50_dac_commit(struct drm_encoder *encoder)
	210	{
	211	}
	212
	213	static void
	214	nv50_dac_mode_set(struct drm_encoder encoder, struct drm_display_mode mode,
	215	struct drm_display_mode *adjusted_mode)
	216	{
	217	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
	218	struct drm_device *dev = encoder->dev;
	219	struct drm_nouveau_private *dev_priv = dev->dev_private;
	220	struct nouveau_channel *evo = dev_priv->evo;
	221	struct nouveau_crtc *crtc = nouveau_crtc(encoder->crtc);
	222	uint32_t mode_ctl = 0, mode_ctl2 = 0;
	223	int ret;
	224
04412921 BS	225	NV_DEBUG_KMS(dev, "or %d type %d crtc %d\n",
04412921 BS	226	nv_encoder->or, nv_encoder->dcb->type, crtc->index);
6ee73861 BS	227
	228	nv50_dac_dpms(encoder, DRM_MODE_DPMS_ON);
	229
	230	if (crtc->index == 1)
	231	mode_ctl \|= NV50_EVO_DAC_MODE_CTRL_CRTC1;
	232	else
	233	mode_ctl \|= NV50_EVO_DAC_MODE_CTRL_CRTC0;
	234
	235	/* Lacking a working tv-out, this is not a 100% sure. */
	236	if (nv_encoder->dcb->type == OUTPUT_ANALOG)
	237	mode_ctl \|= 0x40;
	238	else
	239	if (nv_encoder->dcb->type == OUTPUT_TV)
	240	mode_ctl \|= 0x100;
	241
	242	if (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC)
	243	mode_ctl2 \|= NV50_EVO_DAC_MODE_CTRL2_NHSYNC;
	244
	245	if (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC)
	246	mode_ctl2 \|= NV50_EVO_DAC_MODE_CTRL2_NVSYNC;
	247
	248	ret = RING_SPACE(evo, 3);
	249	if (ret) {
	250	NV_ERROR(dev, "no space while connecting DAC\n");
	251	return;
	252	}
	253	BEGIN_RING(evo, 0, NV50_EVO_DAC(nv_encoder->or, MODE_CTRL), 2);
	254	OUT_RING(evo, mode_ctl);
	255	OUT_RING(evo, mode_ctl2);
ec7fc4a1 BS	256
ec7fc4a1 BS	257	nv_encoder->crtc = encoder->crtc;
6ee73861 BS	258	}
6ee73861 BS	259
2107cce3 BS	260	static struct drm_crtc *
	261	nv50_dac_crtc_get(struct drm_encoder *encoder)
	262	{
	263	return nouveau_encoder(encoder)->crtc;
	264	}
	265
6ee73861 BS	266	static const struct drm_encoder_helper_funcs nv50_dac_helper_funcs = {
	267	.dpms = nv50_dac_dpms,
	268	.save = nv50_dac_save,
	269	.restore = nv50_dac_restore,
	270	.mode_fixup = nv50_dac_mode_fixup,
	271	.prepare = nv50_dac_prepare,
	272	.commit = nv50_dac_commit,
	273	.mode_set = nv50_dac_mode_set,
2107cce3	274	.get_crtc = nv50_dac_crtc_get,
ec7fc4a1 BS	275	.detect = nv50_dac_detect,
ec7fc4a1 BS	276	.disable = nv50_dac_disconnect
6ee73861 BS	277	};
	278
	279	static void
	280	nv50_dac_destroy(struct drm_encoder *encoder)
	281	{
	282	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
	283
	284	if (!encoder)
	285	return;
	286
ef2bb506	287	NV_DEBUG_KMS(encoder->dev, "\n");
6ee73861 BS	288
	289	drm_encoder_cleanup(encoder);
	290	kfree(nv_encoder);
	291	}
	292
	293	static const struct drm_encoder_funcs nv50_dac_encoder_funcs = {
	294	.destroy = nv50_dac_destroy,
	295	};
	296
	297	int
8f1a6086	298	nv50_dac_create(struct drm_connector connector, struct dcb_entry entry)
6ee73861 BS	299	{
	300	struct nouveau_encoder *nv_encoder;
	301	struct drm_encoder *encoder;
	302
6ee73861 BS	303	nv_encoder = kzalloc(sizeof(*nv_encoder), GFP_KERNEL);
	304	if (!nv_encoder)
	305	return -ENOMEM;
	306	encoder = to_drm_encoder(nv_encoder);
	307
	308	nv_encoder->dcb = entry;
	309	nv_encoder->or = ffs(entry->or) - 1;
	310
8f1a6086	311	drm_encoder_init(connector->dev, encoder, &nv50_dac_encoder_funcs,
6ee73861 BS	312	DRM_MODE_ENCODER_DAC);
	313	drm_encoder_helper_add(encoder, &nv50_dac_helper_funcs);
	314
	315	encoder->possible_crtcs = entry->heads;
	316	encoder->possible_clones = 0;
8f1a6086 BS	317
8f1a6086 BS	318	drm_mode_connector_attach_encoder(connector, encoder);
6ee73861 BS	319	return 0;
	320	}
	321