[deliverable/linux.git] / drivers / gpu / drm / rcar-du / rcar_du_plane.c

/*
 * rcar_du_plane.c  --  R-Car Display Unit Planes
 *
 * Copyright (C) 2013-2014 Renesas Electronics Corporation
 *
 * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 */

#include <drm/drmP.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_crtc.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_fb_cma_helper.h>
#include <drm/drm_gem_cma_helper.h>
#include <drm/drm_plane_helper.h>

#include "rcar_du_drv.h"
#include "rcar_du_kms.h"
#include "rcar_du_plane.h"
#include "rcar_du_regs.h"

#define RCAR_DU_COLORKEY_NONE		(0 << 24)
#define RCAR_DU_COLORKEY_SOURCE		(1 << 24)
#define RCAR_DU_COLORKEY_MASK		(1 << 24)

static u32 rcar_du_plane_read(struct rcar_du_group *rgrp,
			      unsigned int index, u32 reg)
{
	return rcar_du_read(rgrp->dev,
			    rgrp->mmio_offset + index * PLANE_OFF + reg);
}

static void rcar_du_plane_write(struct rcar_du_group *rgrp,
				unsigned int index, u32 reg, u32 data)
{
	rcar_du_write(rgrp->dev, rgrp->mmio_offset + index * PLANE_OFF + reg,
		      data);
}

static void rcar_du_plane_setup_fb(struct rcar_du_plane *plane)
{
	struct rcar_du_plane_state *state =
		to_rcar_plane_state(plane->plane.state);
	struct drm_framebuffer *fb = plane->plane.state->fb;
	struct rcar_du_group *rgrp = plane->group;
	unsigned int src_x = state->state.src_x >> 16;
	unsigned int src_y = state->state.src_y >> 16;
	unsigned int index = state->hwindex;
	struct drm_gem_cma_object *gem;
	bool interlaced;
	u32 mwr;

	interlaced = state->state.crtc->state->adjusted_mode.flags
		   & DRM_MODE_FLAG_INTERLACE;

	/* Memory pitch (expressed in pixels). Must be doubled for interlaced
	 * operation with 32bpp formats.
	 */
	if (state->format->planes == 2)
		mwr = fb->pitches[0];
	else
		mwr = fb->pitches[0] * 8 / state->format->bpp;

	if (interlaced && state->format->bpp == 32)
		mwr *= 2;

	rcar_du_plane_write(rgrp, index, PnMWR, mwr);

	/* The Y position is expressed in raster line units and must be doubled
	 * for 32bpp formats, according to the R8A7790 datasheet. No mention of
	 * doubling the Y position is found in the R8A7779 datasheet, but the
	 * rule seems to apply there as well.
	 *
	 * Despite not being documented, doubling seem not to be needed when
	 * operating in interlaced mode.
	 *
	 * Similarly, for the second plane, NV12 and NV21 formats seem to
	 * require a halved Y position value, in both progressive and interlaced
	 * modes.
	 */
	rcar_du_plane_write(rgrp, index, PnSPXR, src_x);
	rcar_du_plane_write(rgrp, index, PnSPYR, src_y *
			    (!interlaced && state->format->bpp == 32 ? 2 : 1));

	gem = drm_fb_cma_get_gem_obj(fb, 0);
	rcar_du_plane_write(rgrp, index, PnDSA0R, gem->paddr + fb->offsets[0]);

	if (state->format->planes == 2) {
		index = (index + 1) % 8;

		rcar_du_plane_write(rgrp, index, PnMWR, fb->pitches[0]);

		rcar_du_plane_write(rgrp, index, PnSPXR, src_x);
		rcar_du_plane_write(rgrp, index, PnSPYR, src_y *
				    (state->format->bpp == 16 ? 2 : 1) / 2);

		gem = drm_fb_cma_get_gem_obj(fb, 1);
		rcar_du_plane_write(rgrp, index, PnDSA0R,
				    gem->paddr + fb->offsets[1]);
	}
}

static void rcar_du_plane_setup_mode(struct rcar_du_plane *plane,
				     unsigned int index)
{
	struct rcar_du_plane_state *state =
		to_rcar_plane_state(plane->plane.state);
	struct rcar_du_group *rgrp = plane->group;
	u32 colorkey;
	u32 pnmr;

	/* The PnALPHAR register controls alpha-blending in 16bpp formats
	 * (ARGB1555 and XRGB1555).
	 *
	 * For ARGB, set the alpha value to 0, and enable alpha-blending when
	 * the A bit is 0. This maps A=0 to alpha=0 and A=1 to alpha=255.
	 *
	 * For XRGB, set the alpha value to the plane-wide alpha value and
	 * enable alpha-blending regardless of the X bit value.
	 */
	if (state->format->fourcc != DRM_FORMAT_XRGB1555)
		rcar_du_plane_write(rgrp, index, PnALPHAR, PnALPHAR_ABIT_0);
	else
		rcar_du_plane_write(rgrp, index, PnALPHAR,
				    PnALPHAR_ABIT_X | state->alpha);

	pnmr = PnMR_BM_MD | state->format->pnmr;

	/* Disable color keying when requested. YUV formats have the
	 * PnMR_SPIM_TP_OFF bit set in their pnmr field, disabling color keying
	 * automatically.
	 */
	if ((state->colorkey & RCAR_DU_COLORKEY_MASK) == RCAR_DU_COLORKEY_NONE)
		pnmr |= PnMR_SPIM_TP_OFF;

	/* For packed YUV formats we need to select the U/V order. */
	if (state->format->fourcc == DRM_FORMAT_YUYV)
		pnmr |= PnMR_YCDF_YUYV;

	rcar_du_plane_write(rgrp, index, PnMR, pnmr);

	switch (state->format->fourcc) {
	case DRM_FORMAT_RGB565:
		colorkey = ((state->colorkey & 0xf80000) >> 8)
			 | ((state->colorkey & 0x00fc00) >> 5)
			 | ((state->colorkey & 0x0000f8) >> 3);
		rcar_du_plane_write(rgrp, index, PnTC2R, colorkey);
		break;

	case DRM_FORMAT_ARGB1555:
	case DRM_FORMAT_XRGB1555:
		colorkey = ((state->colorkey & 0xf80000) >> 9)
			 | ((state->colorkey & 0x00f800) >> 6)
			 | ((state->colorkey & 0x0000f8) >> 3);
		rcar_du_plane_write(rgrp, index, PnTC2R, colorkey);
		break;

	case DRM_FORMAT_XRGB8888:
	case DRM_FORMAT_ARGB8888:
		rcar_du_plane_write(rgrp, index, PnTC3R,
				    PnTC3R_CODE | (state->colorkey & 0xffffff));
		break;
	}
}

static void __rcar_du_plane_setup(struct rcar_du_plane *plane,
				  unsigned int index)
{
	struct rcar_du_plane_state *state =
		to_rcar_plane_state(plane->plane.state);
	struct rcar_du_group *rgrp = plane->group;
	u32 ddcr2 = PnDDCR2_CODE;
	u32 ddcr4;

	/* Data format
	 *
	 * The data format is selected by the DDDF field in PnMR and the EDF
	 * field in DDCR4.
	 */
	ddcr4 = rcar_du_plane_read(rgrp, index, PnDDCR4);
	ddcr4 &= ~PnDDCR4_EDF_MASK;
	ddcr4 |= state->format->edf | PnDDCR4_CODE;

	rcar_du_plane_setup_mode(plane, index);

	if (state->format->planes == 2) {
		if (state->hwindex != index) {
			if (state->format->fourcc == DRM_FORMAT_NV12 ||
			    state->format->fourcc == DRM_FORMAT_NV21)
				ddcr2 |= PnDDCR2_Y420;

			if (state->format->fourcc == DRM_FORMAT_NV21)
				ddcr2 |= PnDDCR2_NV21;

			ddcr2 |= PnDDCR2_DIVU;
		} else {
			ddcr2 |= PnDDCR2_DIVY;
		}
	}

	rcar_du_plane_write(rgrp, index, PnDDCR2, ddcr2);
	rcar_du_plane_write(rgrp, index, PnDDCR4, ddcr4);

	/* Destination position and size */
	rcar_du_plane_write(rgrp, index, PnDSXR, plane->plane.state->crtc_w);
	rcar_du_plane_write(rgrp, index, PnDSYR, plane->plane.state->crtc_h);
	rcar_du_plane_write(rgrp, index, PnDPXR, plane->plane.state->crtc_x);
	rcar_du_plane_write(rgrp, index, PnDPYR, plane->plane.state->crtc_y);

	/* Wrap-around and blinking, disabled */
	rcar_du_plane_write(rgrp, index, PnWASPR, 0);
	rcar_du_plane_write(rgrp, index, PnWAMWR, 4095);
	rcar_du_plane_write(rgrp, index, PnBTR, 0);
	rcar_du_plane_write(rgrp, index, PnMLR, 0);
}

void rcar_du_plane_setup(struct rcar_du_plane *plane)
{
	struct rcar_du_plane_state *state =
		to_rcar_plane_state(plane->plane.state);

	__rcar_du_plane_setup(plane, state->hwindex);
	if (state->format->planes == 2)
		__rcar_du_plane_setup(plane, (state->hwindex + 1) % 8);

	rcar_du_plane_setup_fb(plane);
}

static int rcar_du_plane_atomic_check(struct drm_plane *plane,
				      struct drm_plane_state *state)
{
	struct rcar_du_plane_state *rstate = to_rcar_plane_state(state);
	struct rcar_du_plane *rplane = to_rcar_plane(plane);
	struct rcar_du_device *rcdu = rplane->group->dev;

	if (!state->fb || !state->crtc) {
		rstate->format = NULL;
		return 0;
	}

	if (state->src_w >> 16 != state->crtc_w ||
	    state->src_h >> 16 != state->crtc_h) {
		dev_dbg(rcdu->dev, "%s: scaling not supported\n", __func__);
		return -EINVAL;
	}

	rstate->format = rcar_du_format_info(state->fb->pixel_format);
	if (rstate->format == NULL) {
		dev_dbg(rcdu->dev, "%s: unsupported format %08x\n", __func__,
			state->fb->pixel_format);
		return -EINVAL;
	}

	return 0;
}

static void rcar_du_plane_atomic_update(struct drm_plane *plane,
					struct drm_plane_state *old_state)
{
	struct rcar_du_plane *rplane = to_rcar_plane(plane);

	if (plane->state->crtc)
		rcar_du_plane_setup(rplane);
}

static const struct drm_plane_helper_funcs rcar_du_plane_helper_funcs = {
	.atomic_check = rcar_du_plane_atomic_check,
	.atomic_update = rcar_du_plane_atomic_update,
};

static void rcar_du_plane_reset(struct drm_plane *plane)
{
	struct rcar_du_plane_state *state;

	if (plane->state && plane->state->fb)
		drm_framebuffer_unreference(plane->state->fb);

	kfree(plane->state);
	plane->state = NULL;

	state = kzalloc(sizeof(*state), GFP_KERNEL);
	if (state == NULL)
		return;

	state->hwindex = -1;
	state->alpha = 255;
	state->colorkey = RCAR_DU_COLORKEY_NONE;
	state->zpos = plane->type == DRM_PLANE_TYPE_PRIMARY ? 0 : 1;

	plane->state = &state->state;
	plane->state->plane = plane;
}

static struct drm_plane_state *
rcar_du_plane_atomic_duplicate_state(struct drm_plane *plane)
{
	struct rcar_du_plane_state *state;
	struct rcar_du_plane_state *copy;

	state = to_rcar_plane_state(plane->state);
	copy = kmemdup(state, sizeof(*state), GFP_KERNEL);
	if (copy == NULL)
		return NULL;

	if (copy->state.fb)
		drm_framebuffer_reference(copy->state.fb);

	return &copy->state;
}

static void rcar_du_plane_atomic_destroy_state(struct drm_plane *plane,
					       struct drm_plane_state *state)
{
	if (state->fb)
		drm_framebuffer_unreference(state->fb);

	kfree(to_rcar_plane_state(state));
}

static int rcar_du_plane_atomic_set_property(struct drm_plane *plane,
					     struct drm_plane_state *state,
					     struct drm_property *property,
					     uint64_t val)
{
	struct rcar_du_plane_state *rstate = to_rcar_plane_state(state);
	struct rcar_du_device *rcdu = to_rcar_plane(plane)->group->dev;

	if (property == rcdu->props.alpha)
		rstate->alpha = val;
	else if (property == rcdu->props.colorkey)
		rstate->colorkey = val;
	else if (property == rcdu->props.zpos)
		rstate->zpos = val;
	else
		return -EINVAL;

	return 0;
}

static int rcar_du_plane_atomic_get_property(struct drm_plane *plane,
	const struct drm_plane_state *state, struct drm_property *property,
	uint64_t *val)
{
	const struct rcar_du_plane_state *rstate =
		container_of(state, const struct rcar_du_plane_state, state);
	struct rcar_du_device *rcdu = to_rcar_plane(plane)->group->dev;

	if (property == rcdu->props.alpha)
		*val = rstate->alpha;
	else if (property == rcdu->props.colorkey)
		*val = rstate->colorkey;
	else if (property == rcdu->props.zpos)
		*val = rstate->zpos;
	else
		return -EINVAL;

	return 0;
}

static const struct drm_plane_funcs rcar_du_plane_funcs = {
	.update_plane = drm_atomic_helper_update_plane,
	.disable_plane = drm_atomic_helper_disable_plane,
	.reset = rcar_du_plane_reset,
	.set_property = drm_atomic_helper_plane_set_property,
	.destroy = drm_plane_cleanup,
	.atomic_duplicate_state = rcar_du_plane_atomic_duplicate_state,
	.atomic_destroy_state = rcar_du_plane_atomic_destroy_state,
	.atomic_set_property = rcar_du_plane_atomic_set_property,
	.atomic_get_property = rcar_du_plane_atomic_get_property,
};

static const uint32_t formats[] = {
	DRM_FORMAT_RGB565,
	DRM_FORMAT_ARGB1555,
	DRM_FORMAT_XRGB1555,
	DRM_FORMAT_XRGB8888,
	DRM_FORMAT_ARGB8888,
	DRM_FORMAT_UYVY,
	DRM_FORMAT_YUYV,
	DRM_FORMAT_NV12,
	DRM_FORMAT_NV21,
	DRM_FORMAT_NV16,
};

int rcar_du_planes_init(struct rcar_du_group *rgrp)
{
	struct rcar_du_device *rcdu = rgrp->dev;
	unsigned int num_planes;
	unsigned int num_crtcs;
	unsigned int crtcs;
	unsigned int i;
	int ret;

	 /* Create one primary plane per CRTC in this group and seven overlay
	  * planes.
	  */
	num_crtcs = min(rcdu->num_crtcs - 2 * rgrp->index, 2U);
	num_planes = num_crtcs + 7;

	crtcs = ((1 << rcdu->num_crtcs) - 1) & (3 << (2 * rgrp->index));

	for (i = 0; i < num_planes; ++i) {
		enum drm_plane_type type = i < num_crtcs
					 ? DRM_PLANE_TYPE_PRIMARY
					 : DRM_PLANE_TYPE_OVERLAY;
		struct rcar_du_plane *plane = &rgrp->planes[i];

		plane->group = rgrp;

		ret = drm_universal_plane_init(rcdu->ddev, &plane->plane, crtcs,
					       &rcar_du_plane_funcs, formats,
					       ARRAY_SIZE(formats), type);
		if (ret < 0)
			return ret;

		drm_plane_helper_add(&plane->plane,
				     &rcar_du_plane_helper_funcs);

		if (type == DRM_PLANE_TYPE_PRIMARY)
			continue;

		drm_object_attach_property(&plane->plane.base,
					   rcdu->props.alpha, 255);
		drm_object_attach_property(&plane->plane.base,
					   rcdu->props.colorkey,
					   RCAR_DU_COLORKEY_NONE);
		drm_object_attach_property(&plane->plane.base,
					   rcdu->props.zpos, 1);
	}

	return 0;
}
Commit	Line	Data
4bf8e196 LP	1	/*
	2	* rcar_du_plane.c -- R-Car Display Unit Planes
	3	*
36d50464	4	* Copyright (C) 2013-2014 Renesas Electronics Corporation
4bf8e196 LP	5	*
	6	* Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
	7	*
	8	* This program is free software; you can redistribute it and/or modify
	9	* it under the terms of the GNU General Public License as published by
	10	* the Free Software Foundation; either version 2 of the License, or
	11	* (at your option) any later version.
	12	*/
	13
	14	#include <drm/drmP.h>
3e8da87d	15	#include <drm/drm_atomic_helper.h>
4bf8e196 LP	16	#include <drm/drm_crtc.h>
	17	#include <drm/drm_crtc_helper.h>
	18	#include <drm/drm_fb_cma_helper.h>
	19	#include <drm/drm_gem_cma_helper.h>
920888a2	20	#include <drm/drm_plane_helper.h>
4bf8e196 LP	21
	22	#include "rcar_du_drv.h"
	23	#include "rcar_du_kms.h"
	24	#include "rcar_du_plane.h"
	25	#include "rcar_du_regs.h"
	26
	27	#define RCAR_DU_COLORKEY_NONE (0 << 24)
	28	#define RCAR_DU_COLORKEY_SOURCE (1 << 24)
	29	#define RCAR_DU_COLORKEY_MASK (1 << 24)
	30
cb2025d2	31	static u32 rcar_du_plane_read(struct rcar_du_group *rgrp,
4bf8e196 LP	32	unsigned int index, u32 reg)
4bf8e196 LP	33	{
cb2025d2 LP	34	return rcar_du_read(rgrp->dev,
cb2025d2 LP	35	rgrp->mmio_offset + index * PLANE_OFF + reg);
4bf8e196 LP	36	}
4bf8e196 LP	37
cb2025d2	38	static void rcar_du_plane_write(struct rcar_du_group *rgrp,
4bf8e196 LP	39	unsigned int index, u32 reg, u32 data)
4bf8e196 LP	40	{
cb2025d2 LP	41	rcar_du_write(rgrp->dev, rgrp->mmio_offset + index * PLANE_OFF + reg,
cb2025d2 LP	42	data);
4bf8e196 LP	43	}
4bf8e196 LP	44
f398f344	45	static void rcar_du_plane_setup_fb(struct rcar_du_plane *plane)
4bf8e196	46	{
5bfcbce0	47	struct rcar_du_plane_state *state =
ec69a406	48	to_rcar_plane_state(plane->plane.state);
f398f344	49	struct drm_framebuffer *fb = plane->plane.state->fb;
cb2025d2	50	struct rcar_du_group *rgrp = plane->group;
5bfcbce0 LP	51	unsigned int src_x = state->state.src_x >> 16;
5bfcbce0 LP	52	unsigned int src_y = state->state.src_y >> 16;
5ee5a81d	53	unsigned int index = state->hwindex;
f398f344	54	struct drm_gem_cma_object *gem;
906eff7f	55	bool interlaced;
eb86301f LP	56	u32 mwr;
eb86301f LP	57
5bfcbce0	58	interlaced = state->state.crtc->state->adjusted_mode.flags
47094194	59	& DRM_MODE_FLAG_INTERLACE;
906eff7f LP	60
	61	/* Memory pitch (expressed in pixels). Must be doubled for interlaced
	62	* operation with 32bpp formats.
	63	*/
5bfcbce0	64	if (state->format->planes == 2)
f398f344	65	mwr = fb->pitches[0];
eb86301f	66	else
5bfcbce0	67	mwr = fb->pitches[0] * 8 / state->format->bpp;
eb86301f	68
5bfcbce0	69	if (interlaced && state->format->bpp == 32)
906eff7f LP	70	mwr *= 2;
906eff7f LP	71
eb86301f	72	rcar_du_plane_write(rgrp, index, PnMWR, mwr);
4bf8e196	73
9e7db06d LP	74	/* The Y position is expressed in raster line units and must be doubled
	75	* for 32bpp formats, according to the R8A7790 datasheet. No mention of
	76	* doubling the Y position is found in the R8A7779 datasheet, but the
	77	* rule seems to apply there as well.
	78	*
906eff7f LP	79	* Despite not being documented, doubling seem not to be needed when
	80	* operating in interlaced mode.
	81	*
9e7db06d	82	* Similarly, for the second plane, NV12 and NV21 formats seem to
906eff7f LP	83	* require a halved Y position value, in both progressive and interlaced
906eff7f LP	84	* modes.
4bf8e196	85	*/
287bdf03 LP	86	rcar_du_plane_write(rgrp, index, PnSPXR, src_x);
287bdf03 LP	87	rcar_du_plane_write(rgrp, index, PnSPYR, src_y *
5bfcbce0	88	(!interlaced && state->format->bpp == 32 ? 2 : 1));
f398f344 LP	89
	90	gem = drm_fb_cma_get_gem_obj(fb, 0);
	91	rcar_du_plane_write(rgrp, index, PnDSA0R, gem->paddr + fb->offsets[0]);
4bf8e196	92
5bfcbce0	93	if (state->format->planes == 2) {
4bf8e196 LP	94	index = (index + 1) % 8;
4bf8e196 LP	95
f398f344	96	rcar_du_plane_write(rgrp, index, PnMWR, fb->pitches[0]);
49785e25	97
287bdf03 LP	98	rcar_du_plane_write(rgrp, index, PnSPXR, src_x);
287bdf03 LP	99	rcar_du_plane_write(rgrp, index, PnSPYR, src_y *
5bfcbce0	100	(state->format->bpp == 16 ? 2 : 1) / 2);
eb86301f	101
4bf8e196	102	gem = drm_fb_cma_get_gem_obj(fb, 1);
f398f344 LP	103	rcar_du_plane_write(rgrp, index, PnDSA0R,
f398f344 LP	104	gem->paddr + fb->offsets[1]);
4bf8e196 LP	105	}
	106	}
	107
	108	static void rcar_du_plane_setup_mode(struct rcar_du_plane *plane,
	109	unsigned int index)
	110	{
4407cc02	111	struct rcar_du_plane_state *state =
ec69a406	112	to_rcar_plane_state(plane->plane.state);
cb2025d2	113	struct rcar_du_group *rgrp = plane->group;
4bf8e196 LP	114	u32 colorkey;
	115	u32 pnmr;
	116
	117	/* The PnALPHAR register controls alpha-blending in 16bpp formats
	118	* (ARGB1555 and XRGB1555).
	119	*
	120	* For ARGB, set the alpha value to 0, and enable alpha-blending when
	121	* the A bit is 0. This maps A=0 to alpha=0 and A=1 to alpha=255.
	122	*
	123	* For XRGB, set the alpha value to the plane-wide alpha value and
	124	* enable alpha-blending regardless of the X bit value.
	125	*/
5bfcbce0	126	if (state->format->fourcc != DRM_FORMAT_XRGB1555)
cb2025d2	127	rcar_du_plane_write(rgrp, index, PnALPHAR, PnALPHAR_ABIT_0);
4bf8e196	128	else
cb2025d2	129	rcar_du_plane_write(rgrp, index, PnALPHAR,
4407cc02	130	PnALPHAR_ABIT_X \| state->alpha);
4bf8e196	131
5bfcbce0	132	pnmr = PnMR_BM_MD \| state->format->pnmr;
4bf8e196 LP	133
	134	/* Disable color keying when requested. YUV formats have the
	135	* PnMR_SPIM_TP_OFF bit set in their pnmr field, disabling color keying
	136	* automatically.
	137	*/
4407cc02	138	if ((state->colorkey & RCAR_DU_COLORKEY_MASK) == RCAR_DU_COLORKEY_NONE)
4bf8e196 LP	139	pnmr \|= PnMR_SPIM_TP_OFF;
	140
	141	/* For packed YUV formats we need to select the U/V order. */
5bfcbce0	142	if (state->format->fourcc == DRM_FORMAT_YUYV)
4bf8e196 LP	143	pnmr \|= PnMR_YCDF_YUYV;
4bf8e196 LP	144
cb2025d2	145	rcar_du_plane_write(rgrp, index, PnMR, pnmr);
4bf8e196	146
5bfcbce0	147	switch (state->format->fourcc) {
4bf8e196	148	case DRM_FORMAT_RGB565:
4407cc02 LP	149	colorkey = ((state->colorkey & 0xf80000) >> 8)
	150	\| ((state->colorkey & 0x00fc00) >> 5)
	151	\| ((state->colorkey & 0x0000f8) >> 3);
cb2025d2	152	rcar_du_plane_write(rgrp, index, PnTC2R, colorkey);
4bf8e196 LP	153	break;
	154
	155	case DRM_FORMAT_ARGB1555:
	156	case DRM_FORMAT_XRGB1555:
4407cc02 LP	157	colorkey = ((state->colorkey & 0xf80000) >> 9)
	158	\| ((state->colorkey & 0x00f800) >> 6)
	159	\| ((state->colorkey & 0x0000f8) >> 3);
cb2025d2	160	rcar_du_plane_write(rgrp, index, PnTC2R, colorkey);
4bf8e196 LP	161	break;
	162
	163	case DRM_FORMAT_XRGB8888:
	164	case DRM_FORMAT_ARGB8888:
cb2025d2	165	rcar_du_plane_write(rgrp, index, PnTC3R,
4407cc02	166	PnTC3R_CODE \| (state->colorkey & 0xffffff));
4bf8e196 LP	167	break;
	168	}
	169	}
	170
	171	static void __rcar_du_plane_setup(struct rcar_du_plane *plane,
	172	unsigned int index)
	173	{
5bfcbce0	174	struct rcar_du_plane_state *state =
ec69a406	175	to_rcar_plane_state(plane->plane.state);
cb2025d2	176	struct rcar_du_group *rgrp = plane->group;
4bf8e196 LP	177	u32 ddcr2 = PnDDCR2_CODE;
4bf8e196 LP	178	u32 ddcr4;
4bf8e196 LP	179
	180	/* Data format
	181	*
	182	* The data format is selected by the DDDF field in PnMR and the EDF
	183	* field in DDCR4.
	184	*/
cb2025d2	185	ddcr4 = rcar_du_plane_read(rgrp, index, PnDDCR4);
4bf8e196	186	ddcr4 &= ~PnDDCR4_EDF_MASK;
5bfcbce0	187	ddcr4 \|= state->format->edf \| PnDDCR4_CODE;
4bf8e196 LP	188
	189	rcar_du_plane_setup_mode(plane, index);
	190
5bfcbce0	191	if (state->format->planes == 2) {
5ee5a81d	192	if (state->hwindex != index) {
5bfcbce0 LP	193	if (state->format->fourcc == DRM_FORMAT_NV12 \|\|
5bfcbce0 LP	194	state->format->fourcc == DRM_FORMAT_NV21)
4bf8e196 LP	195	ddcr2 \|= PnDDCR2_Y420;
4bf8e196 LP	196
5bfcbce0	197	if (state->format->fourcc == DRM_FORMAT_NV21)
4bf8e196 LP	198	ddcr2 \|= PnDDCR2_NV21;
	199
	200	ddcr2 \|= PnDDCR2_DIVU;
	201	} else {
	202	ddcr2 \|= PnDDCR2_DIVY;
	203	}
	204	}
	205
cb2025d2 LP	206	rcar_du_plane_write(rgrp, index, PnDDCR2, ddcr2);
cb2025d2 LP	207	rcar_du_plane_write(rgrp, index, PnDDCR4, ddcr4);
4bf8e196	208
4bf8e196	209	/* Destination position and size */
287bdf03 LP	210	rcar_du_plane_write(rgrp, index, PnDSXR, plane->plane.state->crtc_w);
	211	rcar_du_plane_write(rgrp, index, PnDSYR, plane->plane.state->crtc_h);
	212	rcar_du_plane_write(rgrp, index, PnDPXR, plane->plane.state->crtc_x);
	213	rcar_du_plane_write(rgrp, index, PnDPYR, plane->plane.state->crtc_y);
4bf8e196 LP	214
4bf8e196 LP	215	/* Wrap-around and blinking, disabled */
cb2025d2 LP	216	rcar_du_plane_write(rgrp, index, PnWASPR, 0);
	217	rcar_du_plane_write(rgrp, index, PnWAMWR, 4095);
	218	rcar_du_plane_write(rgrp, index, PnBTR, 0);
	219	rcar_du_plane_write(rgrp, index, PnMLR, 0);
4bf8e196 LP	220	}
	221
	222	void rcar_du_plane_setup(struct rcar_du_plane *plane)
	223	{
5bfcbce0	224	struct rcar_du_plane_state *state =
ec69a406	225	to_rcar_plane_state(plane->plane.state);
5bfcbce0	226
5ee5a81d	227	__rcar_du_plane_setup(plane, state->hwindex);
5bfcbce0	228	if (state->format->planes == 2)
5ee5a81d	229	__rcar_du_plane_setup(plane, (state->hwindex + 1) % 8);
4bf8e196	230
f398f344	231	rcar_du_plane_setup_fb(plane);
4bf8e196 LP	232	}
4bf8e196 LP	233
920888a2 LP	234	static int rcar_du_plane_atomic_check(struct drm_plane *plane,
920888a2 LP	235	struct drm_plane_state *state)
4bf8e196	236	{
ec69a406	237	struct rcar_du_plane_state *rstate = to_rcar_plane_state(state);
4bf8e196	238	struct rcar_du_plane *rplane = to_rcar_plane(plane);
cb2025d2	239	struct rcar_du_device *rcdu = rplane->group->dev;
4bf8e196	240
5ee5a81d LP	241	if (!state->fb \|\| !state->crtc) {
5ee5a81d LP	242	rstate->format = NULL;
920888a2	243	return 0;
5ee5a81d	244	}
917de180	245
920888a2 LP	246	if (state->src_w >> 16 != state->crtc_w \|\|
	247	state->src_h >> 16 != state->crtc_h) {
	248	dev_dbg(rcdu->dev, "%s: scaling not supported\n", __func__);
4bf8e196 LP	249	return -EINVAL;
	250	}
	251
5ee5a81d LP	252	rstate->format = rcar_du_format_info(state->fb->pixel_format);
5ee5a81d LP	253	if (rstate->format == NULL) {
920888a2 LP	254	dev_dbg(rcdu->dev, "%s: unsupported format %08x\n", __func__,
920888a2 LP	255	state->fb->pixel_format);
4bf8e196 LP	256	return -EINVAL;
	257	}
	258
4bf8e196 LP	259	return 0;
	260	}
	261
920888a2 LP	262	static void rcar_du_plane_atomic_update(struct drm_plane *plane,
	263	struct drm_plane_state *old_state)
	264	{
	265	struct rcar_du_plane *rplane = to_rcar_plane(plane);
5bfcbce0	266
5ee5a81d LP	267	if (plane->state->crtc)
5ee5a81d LP	268	rcar_du_plane_setup(rplane);
4bf8e196 LP	269	}
4bf8e196 LP	270
920888a2 LP	271	static const struct drm_plane_helper_funcs rcar_du_plane_helper_funcs = {
	272	.atomic_check = rcar_du_plane_atomic_check,
	273	.atomic_update = rcar_du_plane_atomic_update,
	274	};
	275
4407cc02	276	static void rcar_du_plane_reset(struct drm_plane *plane)
4bf8e196	277	{
4407cc02 LP	278	struct rcar_du_plane_state *state;
	279
	280	if (plane->state && plane->state->fb)
	281	drm_framebuffer_unreference(plane->state->fb);
4bf8e196	282
4407cc02 LP	283	kfree(plane->state);
	284	plane->state = NULL;
	285
	286	state = kzalloc(sizeof(*state), GFP_KERNEL);
	287	if (state == NULL)
4bf8e196 LP	288	return;
4bf8e196 LP	289
5ee5a81d	290	state->hwindex = -1;
4407cc02 LP	291	state->alpha = 255;
	292	state->colorkey = RCAR_DU_COLORKEY_NONE;
	293	state->zpos = plane->type == DRM_PLANE_TYPE_PRIMARY ? 0 : 1;
	294
	295	plane->state = &state->state;
	296	plane->state->plane = plane;
4bf8e196 LP	297	}
4bf8e196 LP	298
4407cc02 LP	299	static struct drm_plane_state *
4407cc02 LP	300	rcar_du_plane_atomic_duplicate_state(struct drm_plane *plane)
4bf8e196	301	{
4407cc02 LP	302	struct rcar_du_plane_state *state;
4407cc02 LP	303	struct rcar_du_plane_state *copy;
4bf8e196	304
ec69a406	305	state = to_rcar_plane_state(plane->state);
4407cc02 LP	306	copy = kmemdup(state, sizeof(*state), GFP_KERNEL);
	307	if (copy == NULL)
	308	return NULL;
	309
	310	if (copy->state.fb)
	311	drm_framebuffer_reference(copy->state.fb);
4bf8e196	312
4407cc02	313	return &copy->state;
4bf8e196 LP	314	}
4bf8e196 LP	315
4407cc02 LP	316	static void rcar_du_plane_atomic_destroy_state(struct drm_plane *plane,
4407cc02 LP	317	struct drm_plane_state *state)
4bf8e196	318	{
de115fac LP	319	if (state->fb)
	320	drm_framebuffer_unreference(state->fb);
	321
ec69a406	322	kfree(to_rcar_plane_state(state));
4407cc02	323	}
4bf8e196	324
4407cc02 LP	325	static int rcar_du_plane_atomic_set_property(struct drm_plane *plane,
	326	struct drm_plane_state *state,
	327	struct drm_property *property,
	328	uint64_t val)
	329	{
ec69a406	330	struct rcar_du_plane_state *rstate = to_rcar_plane_state(state);
9f6aee95	331	struct rcar_du_device *rcdu = to_rcar_plane(plane)->group->dev;
4bf8e196	332
9f6aee95	333	if (property == rcdu->props.alpha)
4407cc02	334	rstate->alpha = val;
9f6aee95	335	else if (property == rcdu->props.colorkey)
4407cc02	336	rstate->colorkey = val;
9f6aee95	337	else if (property == rcdu->props.zpos)
4407cc02 LP	338	rstate->zpos = val;
	339	else
	340	return -EINVAL;
4bf8e196	341
4407cc02	342	return 0;
4bf8e196 LP	343	}
4bf8e196 LP	344
4407cc02 LP	345	static int rcar_du_plane_atomic_get_property(struct drm_plane *plane,
	346	const struct drm_plane_state state, struct drm_property property,
	347	uint64_t *val)
4bf8e196	348	{
4407cc02 LP	349	const struct rcar_du_plane_state *rstate =
4407cc02 LP	350	container_of(state, const struct rcar_du_plane_state, state);
9f6aee95	351	struct rcar_du_device *rcdu = to_rcar_plane(plane)->group->dev;
4bf8e196	352
9f6aee95	353	if (property == rcdu->props.alpha)
4407cc02	354	*val = rstate->alpha;
9f6aee95	355	else if (property == rcdu->props.colorkey)
4407cc02	356	*val = rstate->colorkey;
9f6aee95	357	else if (property == rcdu->props.zpos)
4407cc02	358	*val = rstate->zpos;
4bf8e196 LP	359	else
	360	return -EINVAL;
	361
	362	return 0;
	363	}
	364
	365	static const struct drm_plane_funcs rcar_du_plane_funcs = {
336d04a1 LP	366	.update_plane = drm_atomic_helper_update_plane,
336d04a1 LP	367	.disable_plane = drm_atomic_helper_disable_plane,
4407cc02 LP	368	.reset = rcar_du_plane_reset,
4407cc02 LP	369	.set_property = drm_atomic_helper_plane_set_property,
4bf8e196	370	.destroy = drm_plane_cleanup,
4407cc02 LP	371	.atomic_duplicate_state = rcar_du_plane_atomic_duplicate_state,
	372	.atomic_destroy_state = rcar_du_plane_atomic_destroy_state,
	373	.atomic_set_property = rcar_du_plane_atomic_set_property,
	374	.atomic_get_property = rcar_du_plane_atomic_get_property,
4bf8e196 LP	375	};
	376
	377	static const uint32_t formats[] = {
	378	DRM_FORMAT_RGB565,
	379	DRM_FORMAT_ARGB1555,
	380	DRM_FORMAT_XRGB1555,
	381	DRM_FORMAT_XRGB8888,
	382	DRM_FORMAT_ARGB8888,
	383	DRM_FORMAT_UYVY,
	384	DRM_FORMAT_YUYV,
	385	DRM_FORMAT_NV12,
	386	DRM_FORMAT_NV21,
	387	DRM_FORMAT_NV16,
	388	};
	389
cb2025d2	390	int rcar_du_planes_init(struct rcar_du_group *rgrp)
4bf8e196	391	{
cb2025d2	392	struct rcar_du_device *rcdu = rgrp->dev;
917de180 LP	393	unsigned int num_planes;
	394	unsigned int num_crtcs;
	395	unsigned int crtcs;
4bf8e196	396	unsigned int i;
917de180	397	int ret;
4bf8e196	398
9f6aee95	399	/* Create one primary plane per CRTC in this group and seven overlay
917de180 LP	400	* planes.
	401	*/
	402	num_crtcs = min(rcdu->num_crtcs - 2 * rgrp->index, 2U);
	403	num_planes = num_crtcs + 7;
	404
	405	crtcs = ((1 << rcdu->num_crtcs) - 1) & (3 << (2 * rgrp->index));
	406
	407	for (i = 0; i < num_planes; ++i) {
	408	enum drm_plane_type type = i < num_crtcs
	409	? DRM_PLANE_TYPE_PRIMARY
	410	: DRM_PLANE_TYPE_OVERLAY;
99caede1	411	struct rcar_du_plane *plane = &rgrp->planes[i];
4bf8e196	412
cb2025d2	413	plane->group = rgrp;
4bf8e196	414
917de180 LP	415	ret = drm_universal_plane_init(rcdu->ddev, &plane->plane, crtcs,
	416	&rcar_du_plane_funcs, formats,
	417	ARRAY_SIZE(formats), type);
4bf8e196 LP	418	if (ret < 0)
	419	return ret;
	420
920888a2 LP	421	drm_plane_helper_add(&plane->plane,
	422	&rcar_du_plane_helper_funcs);
	423
917de180 LP	424	if (type == DRM_PLANE_TYPE_PRIMARY)
	425	continue;
	426
4bf8e196	427	drm_object_attach_property(&plane->plane.base,
9f6aee95	428	rcdu->props.alpha, 255);
4bf8e196	429	drm_object_attach_property(&plane->plane.base,
9f6aee95	430	rcdu->props.colorkey,
4bf8e196 LP	431	RCAR_DU_COLORKEY_NONE);
4bf8e196 LP	432	drm_object_attach_property(&plane->plane.base,
9f6aee95	433	rcdu->props.zpos, 1);
4bf8e196 LP	434	}
	435
	436	return 0;
	437	}