mirror of https://gitee.com/openkylin/linux.git
310 lines
7.5 KiB
C
310 lines
7.5 KiB
C
/*
|
|
* Copyright (C) 2011 Samsung Electronics Co.Ltd
|
|
* Authors: Joonyoung Shim <jy0922.shim@samsung.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/exynos_drm.h>
|
|
#include "exynos_drm_drv.h"
|
|
#include "exynos_drm_encoder.h"
|
|
#include "exynos_drm_fb.h"
|
|
#include "exynos_drm_gem.h"
|
|
|
|
#define to_exynos_plane(x) container_of(x, struct exynos_plane, base)
|
|
|
|
struct exynos_plane {
|
|
struct drm_plane base;
|
|
struct exynos_drm_overlay overlay;
|
|
bool enabled;
|
|
};
|
|
|
|
static const uint32_t formats[] = {
|
|
DRM_FORMAT_XRGB8888,
|
|
DRM_FORMAT_ARGB8888,
|
|
DRM_FORMAT_NV12,
|
|
DRM_FORMAT_NV12MT,
|
|
};
|
|
|
|
/*
|
|
* This function is to get X or Y size shown via screen. This needs length and
|
|
* start position of CRTC.
|
|
*
|
|
* <--- length --->
|
|
* CRTC ----------------
|
|
* ^ start ^ end
|
|
*
|
|
* There are six cases from a to b.
|
|
*
|
|
* <----- SCREEN ----->
|
|
* 0 last
|
|
* ----------|------------------|----------
|
|
* CRTCs
|
|
* a -------
|
|
* b -------
|
|
* c --------------------------
|
|
* d --------
|
|
* e -------
|
|
* f -------
|
|
*/
|
|
static int exynos_plane_get_size(int start, unsigned length, unsigned last)
|
|
{
|
|
int end = start + length;
|
|
int size = 0;
|
|
|
|
if (start <= 0) {
|
|
if (end > 0)
|
|
size = min_t(unsigned, end, last);
|
|
} else if (start <= last) {
|
|
size = min_t(unsigned, last - start, length);
|
|
}
|
|
|
|
return size;
|
|
}
|
|
|
|
int exynos_plane_mode_set(struct drm_plane *plane, struct drm_crtc *crtc,
|
|
struct drm_framebuffer *fb, int crtc_x, int crtc_y,
|
|
unsigned int crtc_w, unsigned int crtc_h,
|
|
uint32_t src_x, uint32_t src_y,
|
|
uint32_t src_w, uint32_t src_h)
|
|
{
|
|
struct exynos_plane *exynos_plane = to_exynos_plane(plane);
|
|
struct exynos_drm_overlay *overlay = &exynos_plane->overlay;
|
|
unsigned int actual_w;
|
|
unsigned int actual_h;
|
|
int nr;
|
|
int i;
|
|
|
|
DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
|
|
|
|
nr = exynos_drm_fb_get_buf_cnt(fb);
|
|
for (i = 0; i < nr; i++) {
|
|
struct exynos_drm_gem_buf *buffer = exynos_drm_fb_buffer(fb, i);
|
|
|
|
if (!buffer) {
|
|
DRM_LOG_KMS("buffer is null\n");
|
|
return -EFAULT;
|
|
}
|
|
|
|
overlay->dma_addr[i] = buffer->dma_addr;
|
|
overlay->vaddr[i] = buffer->kvaddr;
|
|
|
|
DRM_DEBUG_KMS("buffer: %d, vaddr = 0x%lx, dma_addr = 0x%lx\n",
|
|
i, (unsigned long)overlay->vaddr[i],
|
|
(unsigned long)overlay->dma_addr[i]);
|
|
}
|
|
|
|
actual_w = exynos_plane_get_size(crtc_x, crtc_w, crtc->mode.hdisplay);
|
|
actual_h = exynos_plane_get_size(crtc_y, crtc_h, crtc->mode.vdisplay);
|
|
|
|
if (crtc_x < 0) {
|
|
if (actual_w)
|
|
src_x -= crtc_x;
|
|
else
|
|
src_x += crtc_w;
|
|
crtc_x = 0;
|
|
}
|
|
|
|
if (crtc_y < 0) {
|
|
if (actual_h)
|
|
src_y -= crtc_y;
|
|
else
|
|
src_y += crtc_h;
|
|
crtc_y = 0;
|
|
}
|
|
|
|
/* set drm framebuffer data. */
|
|
overlay->fb_x = src_x;
|
|
overlay->fb_y = src_y;
|
|
overlay->fb_width = fb->width;
|
|
overlay->fb_height = fb->height;
|
|
overlay->src_width = src_w;
|
|
overlay->src_height = src_h;
|
|
overlay->bpp = fb->bits_per_pixel;
|
|
overlay->pitch = fb->pitches[0];
|
|
overlay->pixel_format = fb->pixel_format;
|
|
|
|
/* set overlay range to be displayed. */
|
|
overlay->crtc_x = crtc_x;
|
|
overlay->crtc_y = crtc_y;
|
|
overlay->crtc_width = actual_w;
|
|
overlay->crtc_height = actual_h;
|
|
|
|
/* set drm mode data. */
|
|
overlay->mode_width = crtc->mode.hdisplay;
|
|
overlay->mode_height = crtc->mode.vdisplay;
|
|
overlay->refresh = crtc->mode.vrefresh;
|
|
overlay->scan_flag = crtc->mode.flags;
|
|
|
|
DRM_DEBUG_KMS("overlay : offset_x/y(%d,%d), width/height(%d,%d)",
|
|
overlay->crtc_x, overlay->crtc_y,
|
|
overlay->crtc_width, overlay->crtc_height);
|
|
|
|
exynos_drm_fn_encoder(crtc, overlay, exynos_drm_encoder_plane_mode_set);
|
|
|
|
return 0;
|
|
}
|
|
|
|
void exynos_plane_commit(struct drm_plane *plane)
|
|
{
|
|
struct exynos_plane *exynos_plane = to_exynos_plane(plane);
|
|
struct exynos_drm_overlay *overlay = &exynos_plane->overlay;
|
|
|
|
exynos_drm_fn_encoder(plane->crtc, &overlay->zpos,
|
|
exynos_drm_encoder_plane_commit);
|
|
}
|
|
|
|
void exynos_plane_dpms(struct drm_plane *plane, int mode)
|
|
{
|
|
struct exynos_plane *exynos_plane = to_exynos_plane(plane);
|
|
struct exynos_drm_overlay *overlay = &exynos_plane->overlay;
|
|
|
|
DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
|
|
|
|
if (mode == DRM_MODE_DPMS_ON) {
|
|
if (exynos_plane->enabled)
|
|
return;
|
|
|
|
exynos_drm_fn_encoder(plane->crtc, &overlay->zpos,
|
|
exynos_drm_encoder_plane_enable);
|
|
|
|
exynos_plane->enabled = true;
|
|
} else {
|
|
if (!exynos_plane->enabled)
|
|
return;
|
|
|
|
exynos_drm_fn_encoder(plane->crtc, &overlay->zpos,
|
|
exynos_drm_encoder_plane_disable);
|
|
|
|
exynos_plane->enabled = false;
|
|
}
|
|
}
|
|
|
|
static int
|
|
exynos_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
|
|
struct drm_framebuffer *fb, int crtc_x, int crtc_y,
|
|
unsigned int crtc_w, unsigned int crtc_h,
|
|
uint32_t src_x, uint32_t src_y,
|
|
uint32_t src_w, uint32_t src_h)
|
|
{
|
|
int ret;
|
|
|
|
DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
|
|
|
|
ret = exynos_plane_mode_set(plane, crtc, fb, crtc_x, crtc_y,
|
|
crtc_w, crtc_h, src_x >> 16, src_y >> 16,
|
|
src_w >> 16, src_h >> 16);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
plane->crtc = crtc;
|
|
|
|
exynos_plane_commit(plane);
|
|
exynos_plane_dpms(plane, DRM_MODE_DPMS_ON);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int exynos_disable_plane(struct drm_plane *plane)
|
|
{
|
|
DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
|
|
|
|
exynos_plane_dpms(plane, DRM_MODE_DPMS_OFF);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void exynos_plane_destroy(struct drm_plane *plane)
|
|
{
|
|
struct exynos_plane *exynos_plane = to_exynos_plane(plane);
|
|
|
|
DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
|
|
|
|
exynos_disable_plane(plane);
|
|
drm_plane_cleanup(plane);
|
|
kfree(exynos_plane);
|
|
}
|
|
|
|
static int exynos_plane_set_property(struct drm_plane *plane,
|
|
struct drm_property *property,
|
|
uint64_t val)
|
|
{
|
|
struct drm_device *dev = plane->dev;
|
|
struct exynos_plane *exynos_plane = to_exynos_plane(plane);
|
|
struct exynos_drm_private *dev_priv = dev->dev_private;
|
|
|
|
DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
|
|
|
|
if (property == dev_priv->plane_zpos_property) {
|
|
exynos_plane->overlay.zpos = val;
|
|
return 0;
|
|
}
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
static struct drm_plane_funcs exynos_plane_funcs = {
|
|
.update_plane = exynos_update_plane,
|
|
.disable_plane = exynos_disable_plane,
|
|
.destroy = exynos_plane_destroy,
|
|
.set_property = exynos_plane_set_property,
|
|
};
|
|
|
|
static void exynos_plane_attach_zpos_property(struct drm_plane *plane)
|
|
{
|
|
struct drm_device *dev = plane->dev;
|
|
struct exynos_drm_private *dev_priv = dev->dev_private;
|
|
struct drm_property *prop;
|
|
|
|
DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
|
|
|
|
prop = dev_priv->plane_zpos_property;
|
|
if (!prop) {
|
|
prop = drm_property_create_range(dev, 0, "zpos", 0,
|
|
MAX_PLANE - 1);
|
|
if (!prop)
|
|
return;
|
|
|
|
dev_priv->plane_zpos_property = prop;
|
|
}
|
|
|
|
drm_object_attach_property(&plane->base, prop, 0);
|
|
}
|
|
|
|
struct drm_plane *exynos_plane_init(struct drm_device *dev,
|
|
unsigned int possible_crtcs, bool priv)
|
|
{
|
|
struct exynos_plane *exynos_plane;
|
|
int err;
|
|
|
|
DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
|
|
|
|
exynos_plane = kzalloc(sizeof(struct exynos_plane), GFP_KERNEL);
|
|
if (!exynos_plane) {
|
|
DRM_ERROR("failed to allocate plane\n");
|
|
return NULL;
|
|
}
|
|
|
|
err = drm_plane_init(dev, &exynos_plane->base, possible_crtcs,
|
|
&exynos_plane_funcs, formats, ARRAY_SIZE(formats),
|
|
priv);
|
|
if (err) {
|
|
DRM_ERROR("failed to initialize plane\n");
|
|
kfree(exynos_plane);
|
|
return NULL;
|
|
}
|
|
|
|
if (priv)
|
|
exynos_plane->overlay.zpos = DEFAULT_ZPOS;
|
|
else
|
|
exynos_plane_attach_zpos_property(&exynos_plane->base);
|
|
|
|
return &exynos_plane->base;
|
|
}
|