diff options
Diffstat (limited to 'drivers/media/platform/vimc/vimc-common.h')
| -rw-r--r-- | drivers/media/platform/vimc/vimc-common.h | 224 |
1 files changed, 0 insertions, 224 deletions
diff --git a/drivers/media/platform/vimc/vimc-common.h b/drivers/media/platform/vimc/vimc-common.h deleted file mode 100644 index 616d5a6b0754..000000000000 --- a/drivers/media/platform/vimc/vimc-common.h +++ /dev/null @@ -1,224 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-or-later */ -/* - * vimc-common.h Virtual Media Controller Driver - * - * Copyright (C) 2015-2017 Helen Koike <helen.fornazier@gmail.com> - */ - -#ifndef _VIMC_COMMON_H_ -#define _VIMC_COMMON_H_ - -#include <linux/platform_device.h> -#include <linux/slab.h> -#include <media/media-device.h> -#include <media/v4l2-device.h> - -#define VIMC_PDEV_NAME "vimc" - -/* VIMC-specific controls */ -#define VIMC_CID_VIMC_BASE (0x00f00000 | 0xf000) -#define VIMC_CID_VIMC_CLASS (0x00f00000 | 1) -#define VIMC_CID_TEST_PATTERN (VIMC_CID_VIMC_BASE + 0) -#define VIMC_CID_MEAN_WIN_SIZE (VIMC_CID_VIMC_BASE + 1) - -#define VIMC_FRAME_MAX_WIDTH 4096 -#define VIMC_FRAME_MAX_HEIGHT 2160 -#define VIMC_FRAME_MIN_WIDTH 16 -#define VIMC_FRAME_MIN_HEIGHT 16 - -#define VIMC_FRAME_INDEX(lin, col, width, bpp) ((lin * width + col) * bpp) - -/* Source and sink pad checks */ -#define VIMC_IS_SRC(pad) (pad) -#define VIMC_IS_SINK(pad) (!(pad)) - -/** - * struct vimc_colorimetry_clamp - Adjust colorimetry parameters - * - * @fmt: the pointer to struct v4l2_pix_format or - * struct v4l2_mbus_framefmt - * - * Entities must check if colorimetry given by the userspace is valid, if not - * then set them as DEFAULT - */ -#define vimc_colorimetry_clamp(fmt) \ -do { \ - if ((fmt)->colorspace == V4L2_COLORSPACE_DEFAULT \ - || (fmt)->colorspace > V4L2_COLORSPACE_DCI_P3) { \ - (fmt)->colorspace = V4L2_COLORSPACE_DEFAULT; \ - (fmt)->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT; \ - (fmt)->quantization = V4L2_QUANTIZATION_DEFAULT; \ - (fmt)->xfer_func = V4L2_XFER_FUNC_DEFAULT; \ - } \ - if ((fmt)->ycbcr_enc > V4L2_YCBCR_ENC_SMPTE240M) \ - (fmt)->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT; \ - if ((fmt)->quantization > V4L2_QUANTIZATION_LIM_RANGE) \ - (fmt)->quantization = V4L2_QUANTIZATION_DEFAULT; \ - if ((fmt)->xfer_func > V4L2_XFER_FUNC_SMPTE2084) \ - (fmt)->xfer_func = V4L2_XFER_FUNC_DEFAULT; \ -} while (0) - -/** - * 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; - bool bayer; -}; - -/** - * struct vimc_ent_device - core struct that represents an entity in the - * topology - * - * @dev: a pointer of the device struct of the driver - * @ent: the pointer to struct media_entity for the node - * @process_frame: callback send a frame to that node - * @vdev_get_format: callback that returns the current format a pad, used - * only when is_media_entity_v4l2_video_device(ent) returns - * true - * - * 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 device *dev; - struct media_entity *ent; - void * (*process_frame)(struct vimc_ent_device *ved, - const void *frame); - void (*vdev_get_format)(struct vimc_ent_device *ved, - struct v4l2_pix_format *fmt); -}; - -/** - * struct vimc_device - main device for vimc driver - * - * @pipe_cfg pointer to the vimc pipeline configuration structure - * @ent_devs array of vimc_ent_device pointers - * @mdev the associated media_device parent - * @v4l2_dev Internal v4l2 parent device - */ -struct vimc_device { - const struct vimc_pipeline_config *pipe_cfg; - struct vimc_ent_device **ent_devs; - struct media_device mdev; - struct v4l2_device v4l2_dev; -}; - -/** - * struct vimc_ent_config Structure which describes individual - * configuration for each entity - * - * @name entity name - * @ved pointer to vimc_ent_device (a node in the - * topology) - * @add initializes and registers - * vim entity - called from vimc-core - * @unregister unregisters vimc entity - called from vimc-core - * @release releases vimc entity - called from the v4l2_dev - * release callback - */ -struct vimc_ent_config { - const char *name; - struct vimc_ent_device *(*add)(struct vimc_device *vimc, - const char *vcfg_name); - void (*unregister)(struct vimc_ent_device *ved); - void (*release)(struct vimc_ent_device *ved); -}; - -/** - * vimc_is_source - returns true if the entity has only source pads - * - * @ent: pointer to &struct media_entity - * - */ -bool vimc_is_source(struct media_entity *ent); - -/* prototypes for vimc_ent_config hooks */ -struct vimc_ent_device *vimc_cap_add(struct vimc_device *vimc, - const char *vcfg_name); -void vimc_cap_unregister(struct vimc_ent_device *ved); -void vimc_cap_release(struct vimc_ent_device *ved); - -struct vimc_ent_device *vimc_deb_add(struct vimc_device *vimc, - const char *vcfg_name); -void vimc_deb_release(struct vimc_ent_device *ved); - -struct vimc_ent_device *vimc_sca_add(struct vimc_device *vimc, - const char *vcfg_name); -void vimc_sca_release(struct vimc_ent_device *ved); - -struct vimc_ent_device *vimc_sen_add(struct vimc_device *vimc, - const char *vcfg_name); -void vimc_sen_release(struct vimc_ent_device *ved); - -/** - * vimc_pix_map_by_index - get vimc_pix_map struct by its index - * - * @i: index of the vimc_pix_map struct in vimc_pix_map_list - */ -const struct vimc_pix_map *vimc_pix_map_by_index(unsigned int i); - -/** - * 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); - -/** - * vimc_ent_sd_register - initialize and register a subdev node - * - * @ved: the vimc_ent_device struct to be initialize - * @sd: the v4l2_subdev struct to be initialize and registered - * @v4l2_dev: the v4l2 device to register the v4l2_subdev - * @name: name of the sub-device. Please notice that the name must be - * unique. - * @function: media entity function defined by MEDIA_ENT_F_* macros - * @num_pads: number of pads to initialize - * @pads: the array of pads of the entity, the caller should set the - flags of the pads - * @sd_ops: pointer to &struct v4l2_subdev_ops. - * - * Helper function initialize and register the struct vimc_ent_device and struct - * v4l2_subdev which represents a subdev node in the topology - */ -int vimc_ent_sd_register(struct vimc_ent_device *ved, - struct v4l2_subdev *sd, - struct v4l2_device *v4l2_dev, - const char *const name, - u32 function, - u16 num_pads, - struct media_pad *pads, - const struct v4l2_subdev_ops *sd_ops); - -/** - * vimc_vdev_link_validate - validates a media link - * - * @link: pointer to &struct media_link - * - * This function calls validates if a media link is valid for streaming. - */ -int vimc_vdev_link_validate(struct media_link *link); - -#endif |