410 lines
11 KiB
C
410 lines
11 KiB
C
/*
|
|
* Copyright (C) Jernej Skrabec <jernej.skrabec@siol.net>
|
|
*
|
|
* 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/drm_atomic.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 <drm/drmP.h>
|
|
|
|
#include "sun8i_vi_layer.h"
|
|
#include "sun8i_mixer.h"
|
|
#include "sun8i_vi_scaler.h"
|
|
|
|
static void sun8i_vi_layer_enable(struct sun8i_mixer *mixer, int channel,
|
|
int overlay, bool enable, unsigned int zpos,
|
|
unsigned int old_zpos)
|
|
{
|
|
u32 val;
|
|
|
|
DRM_DEBUG_DRIVER("%sabling VI channel %d overlay %d\n",
|
|
enable ? "En" : "Dis", channel, overlay);
|
|
|
|
if (enable)
|
|
val = SUN8I_MIXER_CHAN_VI_LAYER_ATTR_EN;
|
|
else
|
|
val = 0;
|
|
|
|
regmap_update_bits(mixer->engine.regs,
|
|
SUN8I_MIXER_CHAN_VI_LAYER_ATTR(channel, overlay),
|
|
SUN8I_MIXER_CHAN_VI_LAYER_ATTR_EN, val);
|
|
|
|
if (!enable || zpos != old_zpos) {
|
|
regmap_update_bits(mixer->engine.regs,
|
|
SUN8I_MIXER_BLEND_PIPE_CTL,
|
|
SUN8I_MIXER_BLEND_PIPE_CTL_EN(old_zpos),
|
|
0);
|
|
|
|
regmap_update_bits(mixer->engine.regs,
|
|
SUN8I_MIXER_BLEND_ROUTE,
|
|
SUN8I_MIXER_BLEND_ROUTE_PIPE_MSK(old_zpos),
|
|
0);
|
|
}
|
|
|
|
if (enable) {
|
|
val = SUN8I_MIXER_BLEND_PIPE_CTL_EN(zpos);
|
|
|
|
regmap_update_bits(mixer->engine.regs,
|
|
SUN8I_MIXER_BLEND_PIPE_CTL, val, val);
|
|
|
|
val = channel << SUN8I_MIXER_BLEND_ROUTE_PIPE_SHIFT(zpos);
|
|
|
|
regmap_update_bits(mixer->engine.regs,
|
|
SUN8I_MIXER_BLEND_ROUTE,
|
|
SUN8I_MIXER_BLEND_ROUTE_PIPE_MSK(zpos),
|
|
val);
|
|
}
|
|
}
|
|
|
|
static int sun8i_vi_layer_update_coord(struct sun8i_mixer *mixer, int channel,
|
|
int overlay, struct drm_plane *plane,
|
|
unsigned int zpos)
|
|
{
|
|
struct drm_plane_state *state = plane->state;
|
|
const struct drm_format_info *format = state->fb->format;
|
|
u32 src_w, src_h, dst_w, dst_h;
|
|
u32 outsize, insize;
|
|
u32 hphase, vphase;
|
|
bool subsampled;
|
|
|
|
DRM_DEBUG_DRIVER("Updating VI channel %d overlay %d\n",
|
|
channel, overlay);
|
|
|
|
src_w = drm_rect_width(&state->src) >> 16;
|
|
src_h = drm_rect_height(&state->src) >> 16;
|
|
dst_w = drm_rect_width(&state->dst);
|
|
dst_h = drm_rect_height(&state->dst);
|
|
|
|
hphase = state->src.x1 & 0xffff;
|
|
vphase = state->src.y1 & 0xffff;
|
|
|
|
/* make coordinates dividable by subsampling factor */
|
|
if (format->hsub > 1) {
|
|
int mask, remainder;
|
|
|
|
mask = format->hsub - 1;
|
|
remainder = (state->src.x1 >> 16) & mask;
|
|
src_w = (src_w + remainder) & ~mask;
|
|
hphase += remainder << 16;
|
|
}
|
|
|
|
if (format->vsub > 1) {
|
|
int mask, remainder;
|
|
|
|
mask = format->vsub - 1;
|
|
remainder = (state->src.y1 >> 16) & mask;
|
|
src_h = (src_h + remainder) & ~mask;
|
|
vphase += remainder << 16;
|
|
}
|
|
|
|
insize = SUN8I_MIXER_SIZE(src_w, src_h);
|
|
outsize = SUN8I_MIXER_SIZE(dst_w, dst_h);
|
|
|
|
/* Set height and width */
|
|
DRM_DEBUG_DRIVER("Layer source offset X: %d Y: %d\n",
|
|
(state->src.x1 >> 16) & ~(format->hsub - 1),
|
|
(state->src.y1 >> 16) & ~(format->vsub - 1));
|
|
DRM_DEBUG_DRIVER("Layer source size W: %d H: %d\n", src_w, src_h);
|
|
regmap_write(mixer->engine.regs,
|
|
SUN8I_MIXER_CHAN_VI_LAYER_SIZE(channel, overlay),
|
|
insize);
|
|
regmap_write(mixer->engine.regs,
|
|
SUN8I_MIXER_CHAN_VI_OVL_SIZE(channel),
|
|
insize);
|
|
|
|
/*
|
|
* Scaler must be enabled for subsampled formats, so it scales
|
|
* chroma to same size as luma.
|
|
*/
|
|
subsampled = format->hsub > 1 || format->vsub > 1;
|
|
|
|
if (insize != outsize || subsampled || hphase || vphase) {
|
|
u32 hscale, vscale;
|
|
|
|
DRM_DEBUG_DRIVER("HW scaling is enabled\n");
|
|
|
|
hscale = state->src_w / state->crtc_w;
|
|
vscale = state->src_h / state->crtc_h;
|
|
|
|
sun8i_vi_scaler_setup(mixer, channel, src_w, src_h, dst_w,
|
|
dst_h, hscale, vscale, hphase, vphase,
|
|
format);
|
|
sun8i_vi_scaler_enable(mixer, channel, true);
|
|
} else {
|
|
DRM_DEBUG_DRIVER("HW scaling is not needed\n");
|
|
sun8i_vi_scaler_enable(mixer, channel, false);
|
|
}
|
|
|
|
/* Set base coordinates */
|
|
DRM_DEBUG_DRIVER("Layer destination coordinates X: %d Y: %d\n",
|
|
state->dst.x1, state->dst.y1);
|
|
DRM_DEBUG_DRIVER("Layer destination size W: %d H: %d\n", dst_w, dst_h);
|
|
regmap_write(mixer->engine.regs,
|
|
SUN8I_MIXER_BLEND_ATTR_COORD(zpos),
|
|
SUN8I_MIXER_COORD(state->dst.x1, state->dst.y1));
|
|
regmap_write(mixer->engine.regs,
|
|
SUN8I_MIXER_BLEND_ATTR_INSIZE(zpos),
|
|
outsize);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int sun8i_vi_layer_update_formats(struct sun8i_mixer *mixer, int channel,
|
|
int overlay, struct drm_plane *plane)
|
|
{
|
|
struct drm_plane_state *state = plane->state;
|
|
const struct de2_fmt_info *fmt_info;
|
|
u32 val;
|
|
|
|
fmt_info = sun8i_mixer_format_info(state->fb->format->format);
|
|
if (!fmt_info) {
|
|
DRM_DEBUG_DRIVER("Invalid format\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
val = fmt_info->de2_fmt << SUN8I_MIXER_CHAN_VI_LAYER_ATTR_FBFMT_OFFSET;
|
|
regmap_update_bits(mixer->engine.regs,
|
|
SUN8I_MIXER_CHAN_VI_LAYER_ATTR(channel, overlay),
|
|
SUN8I_MIXER_CHAN_VI_LAYER_ATTR_FBFMT_MASK, val);
|
|
|
|
if (fmt_info->csc != SUN8I_CSC_MODE_OFF) {
|
|
sun8i_csc_set_ccsc_coefficients(mixer, channel, fmt_info->csc);
|
|
sun8i_csc_enable_ccsc(mixer, channel, true);
|
|
} else {
|
|
sun8i_csc_enable_ccsc(mixer, channel, false);
|
|
}
|
|
|
|
if (fmt_info->rgb)
|
|
val = SUN8I_MIXER_CHAN_VI_LAYER_ATTR_RGB_MODE;
|
|
else
|
|
val = 0;
|
|
|
|
regmap_update_bits(mixer->engine.regs,
|
|
SUN8I_MIXER_CHAN_VI_LAYER_ATTR(channel, overlay),
|
|
SUN8I_MIXER_CHAN_VI_LAYER_ATTR_RGB_MODE, val);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int sun8i_vi_layer_update_buffer(struct sun8i_mixer *mixer, int channel,
|
|
int overlay, struct drm_plane *plane)
|
|
{
|
|
struct drm_plane_state *state = plane->state;
|
|
struct drm_framebuffer *fb = state->fb;
|
|
const struct drm_format_info *format = fb->format;
|
|
struct drm_gem_cma_object *gem;
|
|
u32 dx, dy, src_x, src_y;
|
|
dma_addr_t paddr;
|
|
int i;
|
|
|
|
/* Adjust x and y to be dividable by subsampling factor */
|
|
src_x = (state->src.x1 >> 16) & ~(format->hsub - 1);
|
|
src_y = (state->src.y1 >> 16) & ~(format->vsub - 1);
|
|
|
|
for (i = 0; i < format->num_planes; i++) {
|
|
/* Get the physical address of the buffer in memory */
|
|
gem = drm_fb_cma_get_gem_obj(fb, i);
|
|
|
|
DRM_DEBUG_DRIVER("Using GEM @ %pad\n", &gem->paddr);
|
|
|
|
/* Compute the start of the displayed memory */
|
|
paddr = gem->paddr + fb->offsets[i];
|
|
|
|
dx = src_x;
|
|
dy = src_y;
|
|
|
|
if (i > 0) {
|
|
dx /= format->hsub;
|
|
dy /= format->vsub;
|
|
}
|
|
|
|
/* Fixup framebuffer address for src coordinates */
|
|
paddr += dx * format->cpp[i];
|
|
paddr += dy * fb->pitches[i];
|
|
|
|
/* Set the line width */
|
|
DRM_DEBUG_DRIVER("Layer %d. line width: %d bytes\n",
|
|
i + 1, fb->pitches[i]);
|
|
regmap_write(mixer->engine.regs,
|
|
SUN8I_MIXER_CHAN_VI_LAYER_PITCH(channel,
|
|
overlay, i),
|
|
fb->pitches[i]);
|
|
|
|
DRM_DEBUG_DRIVER("Setting %d. buffer address to %pad\n",
|
|
i + 1, &paddr);
|
|
|
|
regmap_write(mixer->engine.regs,
|
|
SUN8I_MIXER_CHAN_VI_LAYER_TOP_LADDR(channel,
|
|
overlay, i),
|
|
lower_32_bits(paddr));
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int sun8i_vi_layer_atomic_check(struct drm_plane *plane,
|
|
struct drm_plane_state *state)
|
|
{
|
|
struct sun8i_vi_layer *layer = plane_to_sun8i_vi_layer(plane);
|
|
struct drm_crtc *crtc = state->crtc;
|
|
struct drm_crtc_state *crtc_state;
|
|
int min_scale, max_scale;
|
|
|
|
if (!crtc)
|
|
return 0;
|
|
|
|
crtc_state = drm_atomic_get_existing_crtc_state(state->state, crtc);
|
|
if (WARN_ON(!crtc_state))
|
|
return -EINVAL;
|
|
|
|
min_scale = DRM_PLANE_HELPER_NO_SCALING;
|
|
max_scale = DRM_PLANE_HELPER_NO_SCALING;
|
|
|
|
if (layer->mixer->cfg->scaler_mask & BIT(layer->channel)) {
|
|
min_scale = SUN8I_VI_SCALER_SCALE_MIN;
|
|
max_scale = SUN8I_VI_SCALER_SCALE_MAX;
|
|
}
|
|
|
|
return drm_atomic_helper_check_plane_state(state, crtc_state,
|
|
min_scale, max_scale,
|
|
true, true);
|
|
}
|
|
|
|
static void sun8i_vi_layer_atomic_disable(struct drm_plane *plane,
|
|
struct drm_plane_state *old_state)
|
|
{
|
|
struct sun8i_vi_layer *layer = plane_to_sun8i_vi_layer(plane);
|
|
unsigned int old_zpos = old_state->normalized_zpos;
|
|
struct sun8i_mixer *mixer = layer->mixer;
|
|
|
|
sun8i_vi_layer_enable(mixer, layer->channel, layer->overlay, false, 0,
|
|
old_zpos);
|
|
}
|
|
|
|
static void sun8i_vi_layer_atomic_update(struct drm_plane *plane,
|
|
struct drm_plane_state *old_state)
|
|
{
|
|
struct sun8i_vi_layer *layer = plane_to_sun8i_vi_layer(plane);
|
|
unsigned int zpos = plane->state->normalized_zpos;
|
|
unsigned int old_zpos = old_state->normalized_zpos;
|
|
struct sun8i_mixer *mixer = layer->mixer;
|
|
|
|
if (!plane->state->visible) {
|
|
sun8i_vi_layer_enable(mixer, layer->channel,
|
|
layer->overlay, false, 0, old_zpos);
|
|
return;
|
|
}
|
|
|
|
sun8i_vi_layer_update_coord(mixer, layer->channel,
|
|
layer->overlay, plane, zpos);
|
|
sun8i_vi_layer_update_formats(mixer, layer->channel,
|
|
layer->overlay, plane);
|
|
sun8i_vi_layer_update_buffer(mixer, layer->channel,
|
|
layer->overlay, plane);
|
|
sun8i_vi_layer_enable(mixer, layer->channel, layer->overlay,
|
|
true, zpos, old_zpos);
|
|
}
|
|
|
|
static struct drm_plane_helper_funcs sun8i_vi_layer_helper_funcs = {
|
|
.atomic_check = sun8i_vi_layer_atomic_check,
|
|
.atomic_disable = sun8i_vi_layer_atomic_disable,
|
|
.atomic_update = sun8i_vi_layer_atomic_update,
|
|
};
|
|
|
|
static const struct drm_plane_funcs sun8i_vi_layer_funcs = {
|
|
.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
|
|
.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
|
|
.destroy = drm_plane_cleanup,
|
|
.disable_plane = drm_atomic_helper_disable_plane,
|
|
.reset = drm_atomic_helper_plane_reset,
|
|
.update_plane = drm_atomic_helper_update_plane,
|
|
};
|
|
|
|
/*
|
|
* While DE2 VI layer supports same RGB formats as UI layer, alpha
|
|
* channel is ignored. This structure lists all unique variants
|
|
* where alpha channel is replaced with "don't care" (X) channel.
|
|
*/
|
|
static const u32 sun8i_vi_layer_formats[] = {
|
|
DRM_FORMAT_BGR565,
|
|
DRM_FORMAT_BGR888,
|
|
DRM_FORMAT_BGRX4444,
|
|
DRM_FORMAT_BGRX5551,
|
|
DRM_FORMAT_BGRX8888,
|
|
DRM_FORMAT_RGB565,
|
|
DRM_FORMAT_RGB888,
|
|
DRM_FORMAT_RGBX4444,
|
|
DRM_FORMAT_RGBX5551,
|
|
DRM_FORMAT_RGBX8888,
|
|
DRM_FORMAT_XBGR1555,
|
|
DRM_FORMAT_XBGR4444,
|
|
DRM_FORMAT_XBGR8888,
|
|
DRM_FORMAT_XRGB1555,
|
|
DRM_FORMAT_XRGB4444,
|
|
DRM_FORMAT_XRGB8888,
|
|
|
|
DRM_FORMAT_NV16,
|
|
DRM_FORMAT_NV12,
|
|
DRM_FORMAT_NV21,
|
|
DRM_FORMAT_NV61,
|
|
DRM_FORMAT_UYVY,
|
|
DRM_FORMAT_VYUY,
|
|
DRM_FORMAT_YUYV,
|
|
DRM_FORMAT_YVYU,
|
|
DRM_FORMAT_YUV411,
|
|
DRM_FORMAT_YUV420,
|
|
DRM_FORMAT_YUV422,
|
|
DRM_FORMAT_YVU411,
|
|
DRM_FORMAT_YVU420,
|
|
DRM_FORMAT_YVU422,
|
|
};
|
|
|
|
struct sun8i_vi_layer *sun8i_vi_layer_init_one(struct drm_device *drm,
|
|
struct sun8i_mixer *mixer,
|
|
int index)
|
|
{
|
|
struct sun8i_vi_layer *layer;
|
|
unsigned int plane_cnt;
|
|
int ret;
|
|
|
|
layer = devm_kzalloc(drm->dev, sizeof(*layer), GFP_KERNEL);
|
|
if (!layer)
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
/* possible crtcs are set later */
|
|
ret = drm_universal_plane_init(drm, &layer->plane, 0,
|
|
&sun8i_vi_layer_funcs,
|
|
sun8i_vi_layer_formats,
|
|
ARRAY_SIZE(sun8i_vi_layer_formats),
|
|
NULL, DRM_PLANE_TYPE_OVERLAY, NULL);
|
|
if (ret) {
|
|
dev_err(drm->dev, "Couldn't initialize layer\n");
|
|
return ERR_PTR(ret);
|
|
}
|
|
|
|
plane_cnt = mixer->cfg->ui_num + mixer->cfg->vi_num;
|
|
|
|
ret = drm_plane_create_zpos_property(&layer->plane, index,
|
|
0, plane_cnt - 1);
|
|
if (ret) {
|
|
dev_err(drm->dev, "Couldn't add zpos property\n");
|
|
return ERR_PTR(ret);
|
|
}
|
|
|
|
drm_plane_helper_add(&layer->plane, &sun8i_vi_layer_helper_funcs);
|
|
layer->mixer = mixer;
|
|
layer->channel = index;
|
|
layer->overlay = 0;
|
|
|
|
return layer;
|
|
}
|