drm/exynos: add property for plane zpos
[firefly-linux-kernel-4.4.55.git] / drivers / gpu / drm / exynos / exynos_drm_plane.c
index c4c6525d46532392414902079ec5aa18efdedfbc..f018c9d32639a7a23b171459245536052a08db6f 100644 (file)
 #include "drmP.h"
 
 #include "exynos_drm.h"
-#include "exynos_drm_crtc.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;
@@ -30,6 +33,84 @@ static const uint32_t formats[] = {
        DRM_FORMAT_NV12MT,
 };
 
+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_format_num_buffers(fb->pixel_format);
+       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 = min((unsigned)(crtc->mode.hdisplay - crtc_x), crtc_w);
+       actual_h = min((unsigned)(crtc->mode.vdisplay - crtc_y), crtc_h);
+
+       /* 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);
+
+       exynos_plane->enabled = true;
+}
+
 static int
 exynos_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
                     struct drm_framebuffer *fb, int crtc_x, int crtc_y,
@@ -37,44 +118,27 @@ exynos_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
                     uint32_t src_x, uint32_t src_y,
                     uint32_t src_w, uint32_t src_h)
 {
-       struct exynos_plane *exynos_plane =
-               container_of(plane, struct exynos_plane, base);
-       struct exynos_drm_overlay *overlay = &exynos_plane->overlay;
-       struct exynos_drm_crtc_pos pos;
        int ret;
 
        DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
 
-       memset(&pos, 0, sizeof(struct exynos_drm_crtc_pos));
-       pos.crtc_x = crtc_x;
-       pos.crtc_y = crtc_y;
-       pos.crtc_w = crtc_w;
-       pos.crtc_h = crtc_h;
-
-       /* considering 16.16 fixed point of source values */
-       pos.fb_x = src_x >> 16;
-       pos.fb_y = src_y >> 16;
-       pos.src_w = src_w >> 16;
-       pos.src_h = src_h >> 16;
-
-       ret = exynos_drm_overlay_update(overlay, fb, &crtc->mode, &pos);
+       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;
 
-       exynos_drm_fn_encoder(crtc, overlay,
-                       exynos_drm_encoder_crtc_mode_set);
-       exynos_drm_fn_encoder(crtc, &overlay->zpos,
-                       exynos_drm_encoder_crtc_plane_commit);
+       plane->crtc = crtc;
+       plane->fb = crtc->fb;
 
-       exynos_plane->enabled = true;
+       exynos_plane_commit(plane);
 
        return 0;
 }
 
 static int exynos_disable_plane(struct drm_plane *plane)
 {
-       struct exynos_plane *exynos_plane =
-               container_of(plane, struct exynos_plane, base);
+       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__);
@@ -83,18 +147,16 @@ static int exynos_disable_plane(struct drm_plane *plane)
                return 0;
 
        exynos_drm_fn_encoder(plane->crtc, &overlay->zpos,
-                       exynos_drm_encoder_crtc_disable);
+                       exynos_drm_encoder_plane_disable);
 
        exynos_plane->enabled = false;
-       exynos_plane->overlay.zpos = DEFAULT_ZPOS;
 
        return 0;
 }
 
 static void exynos_plane_destroy(struct drm_plane *plane)
 {
-       struct exynos_plane *exynos_plane =
-               container_of(plane, struct exynos_plane, base);
+       struct exynos_plane *exynos_plane = to_exynos_plane(plane);
 
        DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
 
@@ -103,69 +165,79 @@ static void exynos_plane_destroy(struct drm_plane *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,
 };
 
-int exynos_plane_init(struct drm_device *dev, unsigned int nr)
+static void exynos_plane_attach_zpos_property(struct drm_plane *plane)
 {
-       struct exynos_plane *exynos_plane;
-       uint32_t possible_crtcs;
+       struct drm_device *dev = plane->dev;
+       struct exynos_drm_private *dev_priv = dev->dev_private;
+       struct drm_property *prop;
 
-       exynos_plane = kzalloc(sizeof(struct exynos_plane), GFP_KERNEL);
-       if (!exynos_plane)
-               return -ENOMEM;
+       DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
 
-       /* all CRTCs are available */
-       possible_crtcs = (1 << MAX_CRTC) - 1;
+       prop = dev_priv->plane_zpos_property;
+       if (!prop) {
+               prop = drm_property_create_range(dev, 0, "zpos", 0,
+                                                MAX_PLANE - 1);
+               if (!prop)
+                       return;
 
-       exynos_plane->overlay.zpos = DEFAULT_ZPOS;
+               dev_priv->plane_zpos_property = prop;
+       }
 
-       return drm_plane_init(dev, &exynos_plane->base, possible_crtcs,
-                             &exynos_plane_funcs, formats, ARRAY_SIZE(formats),
-                             false);
+       drm_object_attach_property(&plane->base, prop, 0);
 }
 
-int exynos_plane_set_zpos_ioctl(struct drm_device *dev, void *data,
-                               struct drm_file *file_priv)
+struct drm_plane *exynos_plane_init(struct drm_device *dev,
+                                   unsigned int possible_crtcs, bool priv)
 {
-       struct drm_exynos_plane_set_zpos *zpos_req = data;
-       struct drm_mode_object *obj;
-       struct drm_plane *plane;
        struct exynos_plane *exynos_plane;
-       int ret = 0;
+       int err;
 
        DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
 
-       if (!drm_core_check_feature(dev, DRIVER_MODESET))
-               return -EINVAL;
-
-       if (zpos_req->zpos < 0 || zpos_req->zpos >= MAX_PLANE) {
-               if (zpos_req->zpos != DEFAULT_ZPOS) {
-                       DRM_ERROR("zpos not within limits\n");
-                       return -EINVAL;
-               }
+       exynos_plane = kzalloc(sizeof(struct exynos_plane), GFP_KERNEL);
+       if (!exynos_plane) {
+               DRM_ERROR("failed to allocate plane\n");
+               return NULL;
        }
 
-       mutex_lock(&dev->mode_config.mutex);
-
-       obj = drm_mode_object_find(dev, zpos_req->plane_id,
-                       DRM_MODE_OBJECT_PLANE);
-       if (!obj) {
-               DRM_DEBUG_KMS("Unknown plane ID %d\n",
-                             zpos_req->plane_id);
-               ret = -EINVAL;
-               goto out;
+       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;
        }
 
-       plane = obj_to_plane(obj);
-       exynos_plane = container_of(plane, struct exynos_plane, base);
-
-       exynos_plane->overlay.zpos = zpos_req->zpos;
+       if (priv)
+               exynos_plane->overlay.zpos = DEFAULT_ZPOS;
+       else
+               exynos_plane_attach_zpos_property(&exynos_plane->base);
 
-out:
-       mutex_unlock(&dev->mode_config.mutex);
-       return ret;
+       return &exynos_plane->base;
 }