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/*
* rcar_du_vsp.h -- R-Car Display Unit VSP-Based Compositor
*
* Copyright (C) 2015 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 <linux/of_platform.h>
#include <linux/videodev2.h>
#include <media/vsp1.h>
#include "rcar_du_drv.h"
#include "rcar_du_kms.h"
#include "rcar_du_vsp.h"
void rcar_du_vsp_enable(struct rcar_du_crtc *crtc)
{
const struct drm_display_mode *mode = &crtc->crtc.state->adjusted_mode;
struct rcar_du_device *rcdu = crtc->group->dev;
struct vsp1_du_lif_config cfg = {
.width = mode->hdisplay,
.height = mode->vdisplay,
};
struct rcar_du_plane_state state = {
.state = {
.crtc = &crtc->crtc,
.crtc_x = 0,
.crtc_y = 0,
.crtc_w = mode->hdisplay,
.crtc_h = mode->vdisplay,
.src_x = 0,
.src_y = 0,
.src_w = mode->hdisplay << 16,
.src_h = mode->vdisplay << 16,
.zpos = 0,
},
.format = rcar_du_format_info(DRM_FORMAT_ARGB8888),
.source = RCAR_DU_PLANE_VSPD1,
.alpha = 255,
.colorkey = 0,
};
if (rcdu->info->gen >= 3)
state.hwindex = (crtc->index % 2) ? 2 : 0;
else
state.hwindex = crtc->index % 2;
__rcar_du_plane_setup(crtc->group, &state);
/* Ensure that the plane source configuration takes effect by requesting
* a restart of the group. See rcar_du_plane_atomic_update() for a more
* detailed explanation.
*
* TODO: Check whether this is still needed on Gen3.
*/
crtc->group->need_restart = true;
vsp1_du_setup_lif(crtc->vsp->vsp, &cfg);
}
void rcar_du_vsp_disable(struct rcar_du_crtc *crtc)
{
vsp1_du_setup_lif(crtc->vsp->vsp, NULL);
}
void rcar_du_vsp_atomic_begin(struct rcar_du_crtc *crtc)
{
vsp1_du_atomic_begin(crtc->vsp->vsp);
}
void rcar_du_vsp_atomic_flush(struct rcar_du_crtc *crtc)
{
vsp1_du_atomic_flush(crtc->vsp->vsp);
}
/* Keep the two tables in sync. */
static const u32 formats_kms[] = {
DRM_FORMAT_RGB332,
DRM_FORMAT_ARGB4444,
DRM_FORMAT_XRGB4444,
DRM_FORMAT_ARGB1555,
DRM_FORMAT_XRGB1555,
DRM_FORMAT_RGB565,
DRM_FORMAT_BGR888,
DRM_FORMAT_RGB888,
DRM_FORMAT_BGRA8888,
DRM_FORMAT_BGRX8888,
DRM_FORMAT_ARGB8888,
DRM_FORMAT_XRGB8888,
DRM_FORMAT_UYVY,
DRM_FORMAT_VYUY,
DRM_FORMAT_YUYV,
DRM_FORMAT_YVYU,
DRM_FORMAT_NV12,
DRM_FORMAT_NV21,
DRM_FORMAT_NV16,
DRM_FORMAT_NV61,
DRM_FORMAT_YUV420,
DRM_FORMAT_YVU420,
DRM_FORMAT_YUV422,
DRM_FORMAT_YVU422,
DRM_FORMAT_YUV444,
DRM_FORMAT_YVU444,
};
static const u32 formats_v4l2[] = {
V4L2_PIX_FMT_RGB332,
V4L2_PIX_FMT_ARGB444,
V4L2_PIX_FMT_XRGB444,
V4L2_PIX_FMT_ARGB555,
V4L2_PIX_FMT_XRGB555,
V4L2_PIX_FMT_RGB565,
V4L2_PIX_FMT_RGB24,
V4L2_PIX_FMT_BGR24,
V4L2_PIX_FMT_ARGB32,
V4L2_PIX_FMT_XRGB32,
V4L2_PIX_FMT_ABGR32,
V4L2_PIX_FMT_XBGR32,
V4L2_PIX_FMT_UYVY,
V4L2_PIX_FMT_VYUY,
V4L2_PIX_FMT_YUYV,
V4L2_PIX_FMT_YVYU,
V4L2_PIX_FMT_NV12M,
V4L2_PIX_FMT_NV21M,
V4L2_PIX_FMT_NV16M,
V4L2_PIX_FMT_NV61M,
V4L2_PIX_FMT_YUV420M,
V4L2_PIX_FMT_YVU420M,
V4L2_PIX_FMT_YUV422M,
V4L2_PIX_FMT_YVU422M,
V4L2_PIX_FMT_YUV444M,
V4L2_PIX_FMT_YVU444M,
};
static void rcar_du_vsp_plane_setup(struct rcar_du_vsp_plane *plane)
{
struct rcar_du_vsp_plane_state *state =
to_rcar_vsp_plane_state(plane->plane.state);
struct drm_framebuffer *fb = plane->plane.state->fb;
struct vsp1_du_atomic_config cfg = {
.pixelformat = 0,
.pitch = fb->pitches[0],
.alpha = state->alpha,
.zpos = state->state.zpos,
};
unsigned int i;
cfg.src.left = state->state.src_x >> 16;
cfg.src.top = state->state.src_y >> 16;
cfg.src.width = state->state.src_w >> 16;
cfg.src.height = state->state.src_h >> 16;
cfg.dst.left = state->state.crtc_x;
cfg.dst.top = state->state.crtc_y;
cfg.dst.width = state->state.crtc_w;
cfg.dst.height = state->state.crtc_h;
for (i = 0; i < state->format->planes; ++i) {
struct drm_gem_cma_object *gem;
gem = drm_fb_cma_get_gem_obj(fb, i);
cfg.mem[i] = gem->paddr + fb->offsets[i];
}
for (i = 0; i < ARRAY_SIZE(formats_kms); ++i) {
if (formats_kms[i] == state->format->fourcc) {
cfg.pixelformat = formats_v4l2[i];
break;
}
}
vsp1_du_atomic_update(plane->vsp->vsp, plane->index, &cfg);
}
static int rcar_du_vsp_plane_atomic_check(struct drm_plane *plane,
struct drm_plane_state *state)
{
struct rcar_du_vsp_plane_state *rstate = to_rcar_vsp_plane_state(state);
struct rcar_du_vsp_plane *rplane = to_rcar_vsp_plane(plane);
struct rcar_du_device *rcdu = rplane->vsp->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->format->format);
if (rstate->format == NULL) {
dev_dbg(rcdu->dev, "%s: unsupported format %08x\n", __func__,
state->fb->format->format);
return -EINVAL;
}
return 0;
}
static void rcar_du_vsp_plane_atomic_update(struct drm_plane *plane,
struct drm_plane_state *old_state)
{
struct rcar_du_vsp_plane *rplane = to_rcar_vsp_plane(plane);
if (plane->state->crtc)
rcar_du_vsp_plane_setup(rplane);
else
vsp1_du_atomic_update(rplane->vsp->vsp, rplane->index, NULL);
}
static const struct drm_plane_helper_funcs rcar_du_vsp_plane_helper_funcs = {
.atomic_check = rcar_du_vsp_plane_atomic_check,
.atomic_update = rcar_du_vsp_plane_atomic_update,
};
static struct drm_plane_state *
rcar_du_vsp_plane_atomic_duplicate_state(struct drm_plane *plane)
{
struct rcar_du_vsp_plane_state *state;
struct rcar_du_vsp_plane_state *copy;
if (WARN_ON(!plane->state))
return NULL;
state = to_rcar_vsp_plane_state(plane->state);
copy = kmemdup(state, sizeof(*state), GFP_KERNEL);
if (copy == NULL)
return NULL;
__drm_atomic_helper_plane_duplicate_state(plane, &copy->state);
return &copy->state;
}
static void rcar_du_vsp_plane_atomic_destroy_state(struct drm_plane *plane,
struct drm_plane_state *state)
{
__drm_atomic_helper_plane_destroy_state(state);
kfree(to_rcar_vsp_plane_state(state));
}
static void rcar_du_vsp_plane_reset(struct drm_plane *plane)
{
struct rcar_du_vsp_plane_state *state;
if (plane->state) {
rcar_du_vsp_plane_atomic_destroy_state(plane, plane->state);
plane->state = NULL;
}
state = kzalloc(sizeof(*state), GFP_KERNEL);
if (state == NULL)
return;
state->alpha = 255;
state->state.zpos = plane->type == DRM_PLANE_TYPE_PRIMARY ? 0 : 1;
plane->state = &state->state;
plane->state->plane = plane;
}
static int rcar_du_vsp_plane_atomic_set_property(struct drm_plane *plane,
struct drm_plane_state *state, struct drm_property *property,
uint64_t val)
{
struct rcar_du_vsp_plane_state *rstate = to_rcar_vsp_plane_state(state);
struct rcar_du_device *rcdu = to_rcar_vsp_plane(plane)->vsp->dev;
if (property == rcdu->props.alpha)
rstate->alpha = val;
else
return -EINVAL;
return 0;
}
static int rcar_du_vsp_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_vsp_plane_state *rstate =
container_of(state, const struct rcar_du_vsp_plane_state, state);
struct rcar_du_device *rcdu = to_rcar_vsp_plane(plane)->vsp->dev;
if (property == rcdu->props.alpha)
*val = rstate->alpha;
else
return -EINVAL;
return 0;
}
static const struct drm_plane_funcs rcar_du_vsp_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.reset = rcar_du_vsp_plane_reset,
.set_property = drm_atomic_helper_plane_set_property,
.destroy = drm_plane_cleanup,
.atomic_duplicate_state = rcar_du_vsp_plane_atomic_duplicate_state,
.atomic_destroy_state = rcar_du_vsp_plane_atomic_destroy_state,
.atomic_set_property = rcar_du_vsp_plane_atomic_set_property,
.atomic_get_property = rcar_du_vsp_plane_atomic_get_property,
};
int rcar_du_vsp_init(struct rcar_du_vsp *vsp)
{
struct rcar_du_device *rcdu = vsp->dev;
struct platform_device *pdev;
struct device_node *np;
unsigned int i;
int ret;
/* Find the VSP device and initialize it. */
np = of_parse_phandle(rcdu->dev->of_node, "vsps", vsp->index);
if (!np) {
dev_err(rcdu->dev, "vsps node not found\n");
return -ENXIO;
}
pdev = of_find_device_by_node(np);
of_node_put(np);
if (!pdev)
return -ENXIO;
vsp->vsp = &pdev->dev;
ret = vsp1_du_init(vsp->vsp);
if (ret < 0)
return ret;
/* The VSP2D (Gen3) has 5 RPFs, but the VSP1D (Gen2) is limited to
* 4 RPFs.
*/
vsp->num_planes = rcdu->info->gen >= 3 ? 5 : 4;
vsp->planes = devm_kcalloc(rcdu->dev, vsp->num_planes,
sizeof(*vsp->planes), GFP_KERNEL);
if (!vsp->planes)
return -ENOMEM;
for (i = 0; i < vsp->num_planes; ++i) {
enum drm_plane_type type = i ? DRM_PLANE_TYPE_OVERLAY
: DRM_PLANE_TYPE_PRIMARY;
struct rcar_du_vsp_plane *plane = &vsp->planes[i];
plane->vsp = vsp;
plane->index = i;
ret = drm_universal_plane_init(rcdu->ddev, &plane->plane,
1 << vsp->index,
&rcar_du_vsp_plane_funcs,
formats_kms,
ARRAY_SIZE(formats_kms), type,
NULL);
if (ret < 0)
return ret;
drm_plane_helper_add(&plane->plane,
&rcar_du_vsp_plane_helper_funcs);
if (type == DRM_PLANE_TYPE_PRIMARY)
continue;
drm_object_attach_property(&plane->plane.base,
rcdu->props.alpha, 255);
drm_plane_create_zpos_property(&plane->plane, 1, 1,
vsp->num_planes - 1);
}
return 0;
}