1 /* 2 * Copyright (c) 2011 Samsung Electronics Co., Ltd. 3 * Authors: 4 * Inki Dae <inki.dae@samsung.com> 5 * Joonyoung Shim <jy0922.shim@samsung.com> 6 * Seung-Woo Kim <sw0312.kim@samsung.com> 7 * 8 * Permission is hereby granted, free of charge, to any person obtaining a 9 * copy of this software and associated documentation files (the "Software"), 10 * to deal in the Software without restriction, including without limitation 11 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 12 * and/or sell copies of the Software, and to permit persons to whom the 13 * Software is furnished to do so, subject to the following conditions: 14 * 15 * The above copyright notice and this permission notice (including the next 16 * paragraph) shall be included in all copies or substantial portions of the 17 * Software. 18 * 19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 22 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR 23 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 24 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 25 * OTHER DEALINGS IN THE SOFTWARE. 26 */ 27 28 #ifndef _EXYNOS_DRM_FB_H_ 29 #define _EXYNOS_DRM_FB_H 30 31 static inline int exynos_drm_format_num_buffers(uint32_t format) 32 { 33 switch (format) { 34 case DRM_FORMAT_NV12: 35 case DRM_FORMAT_NV12MT: 36 return 2; 37 case DRM_FORMAT_YUV420: 38 return 3; 39 default: 40 return 1; 41 } 42 } 43 44 struct drm_framebuffer * 45 exynos_drm_framebuffer_init(struct drm_device *dev, 46 struct drm_mode_fb_cmd2 *mode_cmd, 47 struct drm_gem_object *obj); 48 49 /* get memory information of a drm framebuffer */ 50 struct exynos_drm_gem_buf *exynos_drm_fb_buffer(struct drm_framebuffer *fb, 51 int index); 52 53 void exynos_drm_mode_config_init(struct drm_device *dev); 54 55 #endif 56