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Diffstat (limited to 'drivers/media/platform/vimc/vimc-core.h')
| -rw-r--r-- | drivers/media/platform/vimc/vimc-core.h | 112 |
1 files changed, 0 insertions, 112 deletions
diff --git a/drivers/media/platform/vimc/vimc-core.h b/drivers/media/platform/vimc/vimc-core.h deleted file mode 100644 index 4525d23211ca..000000000000 --- a/drivers/media/platform/vimc/vimc-core.h +++ /dev/null @@ -1,112 +0,0 @@ -/* - * vimc-core.h Virtual Media Controller Driver - * - * Copyright (C) 2015-2017 Helen Koike <helen.fornazier@gmail.com> - * - * 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. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ - -#ifndef _VIMC_CORE_H_ -#define _VIMC_CORE_H_ - -#include <linux/slab.h> -#include <media/v4l2-device.h> - -/** - * struct vimc_pix_map - maps media bus code with v4l2 pixel format - * - * @code: media bus format code defined by MEDIA_BUS_FMT_* macros - * @bbp: number of bytes each pixel occupies - * @pixelformat: pixel format devined by V4L2_PIX_FMT_* macros - * - * Struct which matches the MEDIA_BUS_FMT_* codes with the corresponding - * V4L2_PIX_FMT_* fourcc pixelformat and its bytes per pixel (bpp) - */ -struct vimc_pix_map { - unsigned int code; - unsigned int bpp; - u32 pixelformat; -}; - -/** - * struct vimc_ent_device - core struct that represents a node in the topology - * - * @ent: the pointer to struct media_entity for the node - * @pads: the list of pads of the node - * @destroy: callback to destroy the node - * @process_frame: callback send a frame to that node - * - * Each node of the topology must create a vimc_ent_device struct. Depending on - * the node it will be of an instance of v4l2_subdev or video_device struct - * where both contains a struct media_entity. - * Those structures should embedded the vimc_ent_device struct through - * v4l2_set_subdevdata() and video_set_drvdata() respectivaly, allowing the - * vimc_ent_device struct to be retrieved from the corresponding struct - * media_entity - */ -struct vimc_ent_device { - struct media_entity *ent; - struct media_pad *pads; - void (*destroy)(struct vimc_ent_device *); - void (*process_frame)(struct vimc_ent_device *ved, - struct media_pad *sink, const void *frame); -}; - -/** - * vimc_propagate_frame - propagate a frame through the topology - * - * @src: the source pad where the frame is being originated - * @frame: the frame to be propagated - * - * This function will call the process_frame callback from the vimc_ent_device - * struct of the nodes directly connected to the @src pad - */ -int vimc_propagate_frame(struct media_pad *src, const void *frame); - -/** - * vimc_pads_init - initialize pads - * - * @num_pads: number of pads to initialize - * @pads_flags: flags to use in each pad - * - * Helper functions to allocate/initialize pads - */ -struct media_pad *vimc_pads_init(u16 num_pads, - const unsigned long *pads_flag); - -/** - * vimc_pads_cleanup - free pads - * - * @pads: pointer to the pads - * - * Helper function to free the pads initialized with vimc_pads_init - */ -static inline void vimc_pads_cleanup(struct media_pad *pads) -{ - kfree(pads); -} - -/** - * vimc_pix_map_by_code - get vimc_pix_map struct by media bus code - * - * @code: media bus format code defined by MEDIA_BUS_FMT_* macros - */ -const struct vimc_pix_map *vimc_pix_map_by_code(u32 code); - -/** - * vimc_pix_map_by_pixelformat - get vimc_pix_map struct by v4l2 pixel format - * - * @pixelformat: pixel format devined by V4L2_PIX_FMT_* macros - */ -const struct vimc_pix_map *vimc_pix_map_by_pixelformat(u32 pixelformat); - -#endif |