+++ /dev/null
-/*
- * Copyright (C) STMicroelectronics SA 2014
- * Authors: Benjamin Gaignard <benjamin.gaignard@st.com>
- * Fabien Dessenne <fabien.dessenne@st.com>
- * for STMicroelectronics.
- * License terms: GNU General Public License (GPL), version 2
- */
-
-#include <drm/drmP.h>
-#include <drm/drm_gem_cma_helper.h>
-#include <drm/drm_fb_cma_helper.h>
-
-#include "sti_compositor.h"
-#include "sti_cursor.h"
-#include "sti_gdp.h"
-#include "sti_hqvdp.h"
-#include "sti_layer.h"
-#include "sti_vid.h"
-
-const char *sti_layer_to_str(struct sti_layer *layer)
-{
- switch (layer->desc) {
- case STI_GDP_0:
- return "GDP0";
- case STI_GDP_1:
- return "GDP1";
- case STI_GDP_2:
- return "GDP2";
- case STI_GDP_3:
- return "GDP3";
- case STI_VID_0:
- return "VID0";
- case STI_VID_1:
- return "VID1";
- case STI_CURSOR:
- return "CURSOR";
- case STI_HQVDP_0:
- return "HQVDP0";
- default:
- return "<UNKNOWN LAYER>";
- }
-}
-EXPORT_SYMBOL(sti_layer_to_str);
-
-struct sti_layer *sti_layer_create(struct device *dev, int desc,
- void __iomem *baseaddr)
-{
-
- struct sti_layer *layer = NULL;
-
- switch (desc & STI_LAYER_TYPE_MASK) {
- case STI_GDP:
- layer = sti_gdp_create(dev, desc);
- break;
- case STI_VID:
- layer = sti_vid_create(dev);
- break;
- case STI_CUR:
- layer = sti_cursor_create(dev);
- break;
- case STI_VDP:
- layer = sti_hqvdp_create(dev);
- break;
- }
-
- if (!layer) {
- DRM_ERROR("Failed to create layer\n");
- return NULL;
- }
-
- layer->desc = desc;
- layer->dev = dev;
- layer->regs = baseaddr;
-
- layer->ops->init(layer);
-
- DRM_DEBUG_DRIVER("%s created\n", sti_layer_to_str(layer));
-
- return layer;
-}
-EXPORT_SYMBOL(sti_layer_create);
-
-int sti_layer_prepare(struct sti_layer *layer,
- struct drm_crtc *crtc,
- struct drm_framebuffer *fb,
- struct drm_display_mode *mode, int mixer_id,
- int dest_x, int dest_y, int dest_w, int dest_h,
- int src_x, int src_y, int src_w, int src_h)
-{
- int ret;
- unsigned int i;
- struct drm_gem_cma_object *cma_obj;
-
- if (!layer || !fb || !mode) {
- DRM_ERROR("Null fb, layer or mode\n");
- return 1;
- }
-
- cma_obj = drm_fb_cma_get_gem_obj(fb, 0);
- if (!cma_obj) {
- DRM_ERROR("Can't get CMA GEM object for fb\n");
- return 1;
- }
-
- layer->crtc = crtc;
- layer->fb = fb;
- layer->mode = mode;
- layer->mixer_id = mixer_id;
- layer->dst_x = dest_x;
- layer->dst_y = dest_y;
- layer->dst_w = clamp_val(dest_w, 0, mode->crtc_hdisplay - dest_x);
- layer->dst_h = clamp_val(dest_h, 0, mode->crtc_vdisplay - dest_y);
- layer->src_x = src_x;
- layer->src_y = src_y;
- layer->src_w = src_w;
- layer->src_h = src_h;
- layer->format = fb->pixel_format;
- layer->vaddr = cma_obj->vaddr;
- layer->paddr = cma_obj->paddr;
- for (i = 0; i < 4; i++) {
- layer->pitches[i] = fb->pitches[i];
- layer->offsets[i] = fb->offsets[i];
- }
-
- DRM_DEBUG_DRIVER("%s is associated with mixer_id %d\n",
- sti_layer_to_str(layer),
- layer->mixer_id);
- DRM_DEBUG_DRIVER("%s dst=(%dx%d)@(%d,%d) - src=(%dx%d)@(%d,%d)\n",
- sti_layer_to_str(layer),
- layer->dst_w, layer->dst_h, layer->dst_x, layer->dst_y,
- layer->src_w, layer->src_h, layer->src_x,
- layer->src_y);
-
- DRM_DEBUG_DRIVER("drm FB:%d format:%.4s phys@:0x%lx\n", fb->base.id,
- (char *)&layer->format, (unsigned long)layer->paddr);
-
- if (!layer->ops->prepare)
- goto err_no_prepare;
-
- ret = layer->ops->prepare(layer, !layer->enabled);
- if (!ret)
- layer->enabled = true;
-
- return ret;
-
-err_no_prepare:
- DRM_ERROR("Cannot prepare\n");
- return 1;
-}
-
-int sti_layer_commit(struct sti_layer *layer)
-{
- if (!layer)
- return 1;
-
- if (!layer->ops->commit)
- goto err_no_commit;
-
- return layer->ops->commit(layer);
-
-err_no_commit:
- DRM_ERROR("Cannot commit\n");
- return 1;
-}
-
-int sti_layer_disable(struct sti_layer *layer)
-{
- int ret;
-
- DRM_DEBUG_DRIVER("%s\n", sti_layer_to_str(layer));
- if (!layer)
- return 1;
-
- if (!layer->enabled)
- return 0;
-
- if (!layer->ops->disable)
- goto err_no_disable;
-
- ret = layer->ops->disable(layer);
- if (!ret)
- layer->enabled = false;
- else
- DRM_ERROR("Disable failed\n");
-
- return ret;
-
-err_no_disable:
- DRM_ERROR("Cannot disable\n");
- return 1;
-}
-
-const uint32_t *sti_layer_get_formats(struct sti_layer *layer)
-{
- if (!layer)
- return NULL;
-
- if (!layer->ops->get_formats)
- return NULL;
-
- return layer->ops->get_formats(layer);
-}
-
-unsigned int sti_layer_get_nb_formats(struct sti_layer *layer)
-{
- if (!layer)
- return 0;
-
- if (!layer->ops->get_nb_formats)
- return 0;
-
- return layer->ops->get_nb_formats(layer);
-}
Code Review / kvmfornfv.git / blobdiff