--- /dev/null
+/*
+ * Copyright (C) 2011 Chia-I Wu <olvaffe@gmail.com>
+ * Copyright (C) 2011 LunarG Inc.
+ * Copyright (C) 2014 Rob Clark <robclark@freedesktop.org>
+ *
+ * Based on xf86-video-nouveau, which has
+ *
+ * Copyright © 2007 Red Hat, Inc.
+ * Copyright © 2008 Maarten Maathuis
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#define LOG_TAG "GRALLOC-FREEDRENO"
+
+#include <cutils/log.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <drm.h>
+#include <freedreno_drmif.h>
+
+#include "gralloc_drm.h"
+#include "gralloc_drm_priv.h"
+
+#define MAX(a, b) (((a) > (b)) ? (a) : (b))
+#define ALIGN(val, align) (((val) + (align) - 1) & ~((align) - 1))
+
+struct fd_info {
+ struct gralloc_drm_drv_t base;
+
+ int fd;
+ struct fd_device *dev;
+};
+
+struct fd_buffer {
+ struct gralloc_drm_bo_t base;
+
+ struct fd_bo *bo;
+};
+
+static struct fd_bo *alloc_bo(struct fd_info *info,
+ int width, int height, int cpp, int usage, int *pitch)
+{
+ struct fd_bo *bo = NULL;
+ int flags, size;
+
+ /* TODO need a scanout flag if (usage & GRALLOC_USAGE_HW_FB).. */
+ flags = DRM_FREEDRENO_GEM_CACHE_WCOMBINE;
+
+ *pitch = ALIGN(width, 32) * cpp;
+ size = *pitch * height;
+
+ return fd_bo_new(info->dev, size, flags);
+}
+
+static struct gralloc_drm_bo_t *
+fd_alloc(struct gralloc_drm_drv_t *drv, struct gralloc_drm_handle_t *handle)
+{
+ struct fd_info *info = (struct fd_info *) drv;
+ struct fd_buffer *fd_buf;
+ int cpp;
+
+ cpp = gralloc_drm_get_bpp(handle->format);
+ if (!cpp) {
+ ALOGE("unrecognized format 0x%x", handle->format);
+ return NULL;
+ }
+
+ fd_buf = calloc(1, sizeof(*fd_buf));
+ if (!fd_buf)
+ return NULL;
+
+ if (handle->name) {
+ fd_buf->bo = fd_bo_from_name(info->dev, handle->name);
+ if (!fd_buf->bo) {
+ ALOGE("failed to create fd bo from name %u",
+ handle->name);
+ free(fd_buf);
+ return NULL;
+ }
+ }
+ else {
+ int width, height, pitch;
+
+ width = handle->width;
+ height = handle->height;
+ gralloc_drm_align_geometry(handle->format, &width, &height);
+
+ fd_buf->bo = alloc_bo(info, width, height,
+ cpp, handle->usage, &pitch);
+ if (!fd_buf->bo) {
+ ALOGE("failed to allocate fd bo %dx%dx%d",
+ handle->width, handle->height, cpp);
+ free(fd_buf);
+ return NULL;
+ }
+
+ if (fd_bo_get_name(fd_buf->bo, (uint32_t *) &handle->name)) {
+ ALOGE("failed to flink fd bo");
+ fd_bo_del(fd_buf->bo);
+ free(fd_buf);
+ return NULL;
+ }
+
+ handle->stride = pitch;
+ }
+
+ if (handle->usage & GRALLOC_USAGE_HW_FB)
+ fd_buf->base.fb_handle = fd_bo_handle(fd_buf->bo);
+
+ fd_buf->base.handle = handle;
+
+ return &fd_buf->base;
+}
+
+static void fd_free(struct gralloc_drm_drv_t *drv,
+ struct gralloc_drm_bo_t *bo)
+{
+ struct fd_buffer *fd_buf = (struct fd_buffer *) bo;
+ fd_bo_del(fd_buf->bo);
+ free(fd_buf);
+}
+
+static int fd_map(struct gralloc_drm_drv_t *drv,
+ struct gralloc_drm_bo_t *bo, int x, int y, int w, int h,
+ int enable_write, void **addr)
+{
+ struct fd_buffer *fd_buf = (struct fd_buffer *) bo;
+ if (fd_bo_map(fd_buf->bo))
+ return 0;
+ return -errno;
+}
+
+static void fd_unmap(struct gralloc_drm_drv_t *drv,
+ struct gralloc_drm_bo_t *bo)
+{
+ // TODO should add fd_bo_unmap() to libdrm_freedreno someday..
+}
+
+static void fd_init_kms_features(struct gralloc_drm_drv_t *drv,
+ struct gralloc_drm_t *drm)
+{
+ struct fd_info *info = (struct fd_info *) drv;
+
+ switch (drm->primary.fb_format) {
+ case HAL_PIXEL_FORMAT_BGRA_8888:
+ case HAL_PIXEL_FORMAT_RGB_565:
+ break;
+ default:
+ drm->primary.fb_format = HAL_PIXEL_FORMAT_BGRA_8888;
+ break;
+ }
+
+ drm->mode_quirk_vmwgfx = 0;
+ drm->swap_mode = DRM_SWAP_FLIP;
+ drm->mode_sync_flip = 1;
+ drm->swap_interval = 1;
+ drm->vblank_secondary = 0;
+}
+
+static void fd_destroy(struct gralloc_drm_drv_t *drv)
+{
+ struct fd_info *info = (struct fd_info *) drv;
+ fd_device_del(info->dev);
+ free(info);
+}
+
+struct gralloc_drm_drv_t *gralloc_drm_drv_create_for_freedreno(int fd)
+{
+ struct fd_info *info;
+ int err;
+
+ info = calloc(1, sizeof(*info));
+ if (!info)
+ return NULL;
+
+ info->fd = fd;
+ info->dev = fd_device_new_dup(info->fd);
+ if (!info->dev) {
+ ALOGE("failed to create fd device");
+ free(info);
+ return NULL;
+ }
+
+ info->base.destroy = fd_destroy;
+ info->base.init_kms_features = fd_init_kms_features;
+ info->base.alloc = fd_alloc;
+ info->base.free = fd_free;
+ info->base.map = fd_map;
+ info->base.unmap = fd_unmap;
+
+ return &info->base;
+}
\ No newline at end of file
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