/* * Copyright (C) 2011 Samsung Electronics Co.Ltd * Authors: Joonyoung Shim * * 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 "drmP.h" #include "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_NV12M, 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, 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; plane->fb = crtc->fb; exynos_plane_commit(plane); return 0; } static int exynos_disable_plane(struct drm_plane *plane) { 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 (!exynos_plane->enabled) return 0; exynos_drm_fn_encoder(plane->crtc, &overlay->zpos, 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 = to_exynos_plane(plane); DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__); exynos_disable_plane(plane); drm_plane_cleanup(plane); kfree(exynos_plane); } static struct drm_plane_funcs exynos_plane_funcs = { .update_plane = exynos_update_plane, .disable_plane = exynos_disable_plane, .destroy = exynos_plane_destroy, }; struct drm_plane *exynos_plane_init(struct drm_device *dev, unsigned int possible_crtcs, bool priv) { struct exynos_plane *exynos_plane; int err; exynos_plane = kzalloc(sizeof(struct exynos_plane), GFP_KERNEL); if (!exynos_plane) { DRM_ERROR("failed to allocate plane\n"); return NULL; } exynos_plane->overlay.zpos = DEFAULT_ZPOS; 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; } return &exynos_plane->base; } int exynos_plane_set_zpos_ioctl(struct drm_device *dev, void *data, struct drm_file *file_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; 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; } } 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; } plane = obj_to_plane(obj); exynos_plane = to_exynos_plane(plane); exynos_plane->overlay.zpos = zpos_req->zpos; out: mutex_unlock(&dev->mode_config.mutex); return ret; }