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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2021 StarFive Technology Co., Ltd.
*/
#include <drm/drm.h>
#include <drm/drm_atomic.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_fourcc.h>
#include <drm/drm_atomic_uapi.h>
#include <drm/drm_framebuffer.h>
#include <drm/drm_plane_helper.h>
#include <drm/drm_gem_framebuffer_helper.h>
#include <drm/drm_gem_atomic_helper.h>
#include "starfive_drm_crtc.h"
#include "starfive_drm_plane.h"
#include "starfive_drm_gem.h"
#include "starfive_drm_lcdc.h"
#include "starfive_drm_vpp.h"
static const u32 formats[] = {
DRM_FORMAT_RGB565,
DRM_FORMAT_UYVY,
DRM_FORMAT_VYUY,
DRM_FORMAT_YUYV,
DRM_FORMAT_YVYU,
DRM_FORMAT_YUV420,
DRM_FORMAT_NV21,
DRM_FORMAT_NV12,
DRM_FORMAT_ARGB8888,
DRM_FORMAT_ABGR8888,
};
static void starfive_plane_destroy(struct drm_plane *plane)
{
drm_plane_cleanup(plane);
}
static const struct drm_plane_funcs starfive_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.destroy = starfive_plane_destroy,
.set_property = NULL,
.reset = drm_atomic_helper_plane_reset,
.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
};
static void starfive_plane_atomic_disable(struct drm_plane *plane,
struct drm_atomic_state *old_state)
{
}
static int starfive_plane_atomic_check(struct drm_plane *plane,
struct drm_atomic_state *state)
{
struct drm_plane_state *new_plane_state =
drm_atomic_get_new_plane_state(state, plane);
struct drm_framebuffer *fb = new_plane_state->fb;
struct drm_crtc_state *crtc_state;
if (!fb)
return 0;
if (WARN_ON(!new_plane_state->crtc))
return 0;
/*
ret = starfive_drm_plane_check(state->crtc, plane,
to_starfive_plane_state(state));
if (ret)
return ret;
*/
//crtc_state = drm_atomic_get_crtc_state(new_plane_state->state, new_plane_state->crtc);
crtc_state = drm_atomic_get_crtc_state(state, new_plane_state->crtc);
if (IS_ERR(crtc_state))
return PTR_ERR(crtc_state);
return drm_atomic_helper_check_plane_state(new_plane_state, crtc_state,
DRM_PLANE_NO_SCALING,
DRM_PLANE_NO_SCALING,
true, true);
}
static void starfive_plane_atomic_update(struct drm_plane *plane,
struct drm_atomic_state *old_state)
{
struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(old_state,
plane);
struct drm_crtc *crtc = new_state->crtc;
struct drm_framebuffer *fb = new_state->fb;
//struct drm_plane_state *state = plane->state;
//struct drm_crtc *crtc = state->crtc;
//struct drm_framebuffer *fb = state->fb;
dma_addr_t dma_addr;
struct drm_gem_object *obj;
struct starfive_drm_gem_obj *starfive_obj;
unsigned int pitch, format;
struct starfive_crtc *sf_crtc = to_starfive_crtc(crtc);
if (!crtc || WARN_ON(!fb))
return;
//if (!plane->state->visible) {
if (!new_state->visible) {
starfive_plane_atomic_disable(plane, old_state);
return;
}
obj = fb->obj[0];
starfive_obj = to_starfive_gem_obj(obj);
dma_addr = starfive_obj->dma_addr;
pitch = fb->pitches[0];
format = fb->format->format;
//dma_addr += (plane->state->src.x1 >> 16) * fb->format->cpp[0];
//dma_addr += (plane->state->src.y1 >> 16) * pitch;
dma_addr += (new_state->src.x1 >> 16) * fb->format->cpp[0];
dma_addr += (new_state->src.y1 >> 16) * pitch;
if (sf_crtc->ddr_format != format) {
sf_crtc->ddr_format = format;
sf_crtc->ddr_format_change = true;
} else {
sf_crtc->ddr_format_change = false;
}
if (sf_crtc->dma_addr != dma_addr) {
sf_crtc->dma_addr = dma_addr;
sf_crtc->dma_addr_change = true;
} else {
sf_crtc->dma_addr_change = false;
}
sf_crtc->size = obj->size;
}
static int starfive_plane_atomic_async_check(struct drm_plane *plane,
struct drm_atomic_state *state)
{
struct drm_crtc_state *crtc_state;
struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
plane);
if (plane != new_plane_state->crtc->cursor)
return -EINVAL;
if (!plane->state)
return -EINVAL;
if (!plane->state->fb)
return -EINVAL;
//if (new_plane_state->state)
// crtc_state = drm_atomic_get_existing_crtc_state(new_plane_state->state,
// new_plane_state->crtc);
//else /* Special case for asynchronous cursor updates. */
// crtc_state = new_plane_state->crtc->state;
if (state)
crtc_state = drm_atomic_get_existing_crtc_state(state,
new_plane_state->crtc);
else /* Special case for asynchronous cursor updates. */
//crtc_state = plane->crtc->state;
crtc_state = new_plane_state->crtc->state;
return drm_atomic_helper_check_plane_state(plane->state, crtc_state,
DRM_PLANE_NO_SCALING,
DRM_PLANE_NO_SCALING,
true, true);
}
static void starfive_plane_atomic_async_update(struct drm_plane *plane,
struct drm_atomic_state *new_state)
{
struct drm_plane_state *new_plane_state =
drm_atomic_get_new_plane_state(new_state, plane);
struct starfive_crtc *crtcp = to_starfive_crtc(plane->state->crtc);
plane->state->crtc_x = new_plane_state->crtc_x;
plane->state->crtc_y = new_plane_state->crtc_y;
plane->state->crtc_h = new_plane_state->crtc_h;
plane->state->crtc_w = new_plane_state->crtc_w;
plane->state->src_x = new_plane_state->src_x;
plane->state->src_y = new_plane_state->src_y;
plane->state->src_h = new_plane_state->src_h;
plane->state->src_w = new_plane_state->src_w;
swap(plane->state->fb, new_plane_state->fb);
if (crtcp->is_enabled) {
starfive_plane_atomic_update(plane, new_state);
spin_lock(&crtcp->reg_lock);
starfive_crtc_hw_config_simple(crtcp);
spin_unlock(&crtcp->reg_lock);
}
}
static const struct drm_plane_helper_funcs starfive_plane_helper_funcs = {
.atomic_check = starfive_plane_atomic_check,
.atomic_update = starfive_plane_atomic_update,
//.prepare_fb = drm_gem_fb_prepare_fb,
.prepare_fb = drm_gem_plane_helper_prepare_fb,
.atomic_disable = starfive_plane_atomic_disable,
.atomic_async_check = starfive_plane_atomic_async_check,
.atomic_async_update = starfive_plane_atomic_async_update,
};
int starfive_plane_init(struct drm_device *dev,
struct starfive_crtc *starfive_crtc,
enum drm_plane_type type)
{
int ret;
ret = drm_universal_plane_init(dev, starfive_crtc->planes, 0,
&starfive_plane_funcs, formats,
ARRAY_SIZE(formats), NULL, type, NULL);
if (ret) {
dev_err(dev->dev, "failed to initialize plane\n");
return ret;
}
drm_plane_helper_add(starfive_crtc->planes, &starfive_plane_helper_funcs);
return 0;
}
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