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https://github.com/revyos/thead-kernel.git
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94 lines
3.7 KiB
C
94 lines
3.7 KiB
C
/*
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* @File
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* @Codingstyle LinuxKernel
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* @Copyright Copyright (c) Imagination Technologies Ltd. All Rights Reserved
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* @License Dual MIT/GPLv2
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*
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* The contents of this file are subject to the MIT license as set out below.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* Alternatively, the contents of this file may be used under the terms of
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* the GNU General Public License Version 2 ("GPL") in which case the provisions
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* of GPL are applicable instead of those above.
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*
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* If you wish to allow use of your version of this file only under the terms of
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* GPL, and not to allow others to use your version of this file under the terms
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* of the MIT license, indicate your decision by deleting the provisions above
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* and replace them with the notice and other provisions required by GPL as set
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* out in the file called "GPL-COPYING" included in this distribution. If you do
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* not delete the provisions above, a recipient may use your version of this file
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* under the terms of either the MIT license or GPL.
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*
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* This License is also included in this distribution in the file called
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* "MIT-COPYING".
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*
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* EXCEPT AS OTHERWISE STATED IN A NEGOTIATED AGREEMENT: (A) THE SOFTWARE IS
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* PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
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* BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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* PURPOSE AND NONINFRINGEMENT; AND (B) IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef __DRM_NULLDISP_DRV_H__
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#define __DRM_NULLDISP_DRV_H__
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#include <linux/version.h>
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#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 11, 0))
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#include <drm/drm_fourcc.h>
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#endif
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#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 14, 0))
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#define NULLDISP_USE_ATOMIC
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#endif
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struct drm_framebuffer;
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/******************************************************************************
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* Linux compatibility functions
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******************************************************************************/
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static inline u32 nulldisp_drm_fb_format(struct drm_framebuffer *fb)
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{
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#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 11, 0))
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return fb->format->format;
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#else /* (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 11, 0)) */
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return fb->pixel_format;
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#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 11, 0)) */
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}
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static inline u64 nulldisp_drm_fb_modifier(struct drm_framebuffer *fb)
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{
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#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 10, 0))
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return fb->modifier;
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#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 1, 0))
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return fb->modifier[0];
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#else
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/* 0 represents DRM_FORMAT_MOD_NONE, doesn't exist before 4.1 */
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return 0;
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#endif
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}
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/******************************************************************************
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* DRM framebuffer support functions
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******************************************************************************/
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static inline int nulldisp_drm_fb_num_planes(struct drm_framebuffer *fb)
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{
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#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 11, 0))
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return fb->format->num_planes;
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#else
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return drm_format_num_planes(nulldisp_drm_fb_format(fb));
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#endif
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}
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#endif /* __DRM_NULLDISP_DRV_H__ */
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