diff options
Diffstat (limited to 'drivers/media/platform/vimc/vimc-common.h')
| -rw-r--r-- | drivers/media/platform/vimc/vimc-common.h | 148 |
1 files changed, 87 insertions, 61 deletions
diff --git a/drivers/media/platform/vimc/vimc-common.h b/drivers/media/platform/vimc/vimc-common.h index 7b4d988b208b..87eb8259c2a8 100644 --- a/drivers/media/platform/vimc/vimc-common.h +++ b/drivers/media/platform/vimc/vimc-common.h @@ -8,18 +8,18 @@ #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> -#include "vimc-streamer.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 @@ -28,6 +28,10 @@ #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 * @@ -55,25 +59,28 @@ do { \ } while (0) /** - * struct vimc_platform_data - platform data to components + * struct vimc_pix_map - maps media bus code with v4l2 pixel format * - * @entity_name: The name of the entity to be created + * @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 * - * Board setup code will often provide additional information using the device's - * platform_data field to hold additional information. - * When injecting a new platform_device in the component system the core needs - * to provide to the corresponding submodules the name of the entity that should - * be used when registering the subdevice in the Media Controller system. + * Struct which matches the MEDIA_BUS_FMT_* codes with the corresponding + * V4L2_PIX_FMT_* fourcc pixelformat and its bytes per pixel (bpp) */ -struct vimc_platform_data { - char entity_name[32]; +struct vimc_pix_map { + unsigned int code; + unsigned int bpp; + u32 pixelformat; + bool bayer; }; /** - * struct vimc_ent_device - core struct that represents a node in the topology + * 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 - * @pads: the list of pads of 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 @@ -88,9 +95,8 @@ struct vimc_platform_data { * media_entity */ struct vimc_ent_device { + struct device *dev; struct media_entity *ent; - struct media_pad *pads; - struct vimc_stream *stream; void * (*process_frame)(struct vimc_ent_device *ved, const void *frame); void (*vdev_get_format)(struct vimc_ent_device *ved, @@ -98,55 +104,86 @@ struct vimc_ent_device { }; /** - * vimc_mbus_code_supported - helper to check supported mbus codes + * struct vimc_device - main device for vimc driver * - * Helper function to check if mbus code is enumerated by vimc_enum_mbus_code() + * @pdev pointer to the platform device + * @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 */ -bool vimc_mbus_code_supported(__u32 code); +struct vimc_device { + struct platform_device pdev; + const struct vimc_pipeline_config *pipe_cfg; + struct vimc_ent_device **ent_devs; + struct media_device mdev; + struct v4l2_device v4l2_dev; +}; /** - * vimc_enum_mbus_code - enumerate mbus codes - * - * Helper function to be pluged in .enum_mbus_code from - * struct v4l2_subdev_pad_ops. + * 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 subdev add hook - initializes and registers + * subdev called from vimc-core + * @rm subdev rm hook - unregisters and frees + * subdev called from vimc-core */ -int vimc_enum_mbus_code(struct v4l2_subdev *sd, - struct v4l2_subdev_pad_config *cfg, - struct v4l2_subdev_mbus_code_enum *code); +struct vimc_ent_config { + const char *name; + struct vimc_ent_device *(*add)(struct vimc_device *vimc, + const char *vcfg_name); + void (*rm)(struct vimc_device *vimc, struct vimc_ent_device *ved); +}; /** - * vimc_pads_init - initialize pads + * vimc_is_source - returns true if the entity has only source pads * - * @num_pads: number of pads to initialize - * @pads_flags: flags to use in each pad + * @ent: pointer to &struct media_entity * - * Helper functions to allocate/initialize pads */ -struct media_pad *vimc_pads_init(u16 num_pads, - const unsigned long *pads_flag); +bool vimc_is_source(struct media_entity *ent); + +/* prototypes for vimc_ent_config add and rm hooks */ +struct vimc_ent_device *vimc_cap_add(struct vimc_device *vimc, + const char *vcfg_name); +void vimc_cap_rm(struct vimc_device *vimc, struct vimc_ent_device *ved); + +struct vimc_ent_device *vimc_deb_add(struct vimc_device *vimc, + const char *vcfg_name); +void vimc_deb_rm(struct vimc_device *vimc, struct vimc_ent_device *ved); + +struct vimc_ent_device *vimc_sca_add(struct vimc_device *vimc, + const char *vcfg_name); +void vimc_sca_rm(struct vimc_device *vimc, struct vimc_ent_device *ved); + +struct vimc_ent_device *vimc_sen_add(struct vimc_device *vimc, + const char *vcfg_name); +void vimc_sen_rm(struct vimc_device *vimc, struct vimc_ent_device *ved); /** - * vimc_pads_cleanup - free pads - * - * @pads: pointer to the pads + * vimc_pix_map_by_index - get vimc_pix_map struct by its index * - * Helper function to free the pads initialized with vimc_pads_init + * @i: index of the vimc_pix_map struct in vimc_pix_map_list */ -static inline void vimc_pads_cleanup(struct media_pad *pads) -{ - kfree(pads); -} +const struct vimc_pix_map *vimc_pix_map_by_index(unsigned int i); /** - * vimc_pipeline_s_stream - start stream through the pipeline + * vimc_pix_map_by_code - get vimc_pix_map struct by media bus code * - * @ent: the pointer to struct media_entity for the node - * @enable: 1 to start the stream and 0 to stop + * @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 * - * Helper function to call the s_stream of the subdevices connected - * in all the sink pads of the entity + * @pixelformat: pixel format devined by V4L2_PIX_FMT_* macros */ -int vimc_pipeline_s_stream(struct media_entity *ent, int enable); +const struct vimc_pix_map *vimc_pix_map_by_pixelformat(u32 pixelformat); /** * vimc_ent_sd_register - initialize and register a subdev node @@ -158,7 +195,8 @@ int vimc_pipeline_s_stream(struct media_entity *ent, int enable); * unique. * @function: media entity function defined by MEDIA_ENT_F_* macros * @num_pads: number of pads to initialize - * @pads_flag: flags to use in each pad + * @pads: the array of pads of the entity, the caller should set the + flags of the pads * @sd_int_ops: pointer to &struct v4l2_subdev_internal_ops * @sd_ops: pointer to &struct v4l2_subdev_ops. * @@ -171,29 +209,17 @@ int vimc_ent_sd_register(struct vimc_ent_device *ved, const char *const name, u32 function, u16 num_pads, - const unsigned long *pads_flag, + struct media_pad *pads, const struct v4l2_subdev_internal_ops *sd_int_ops, const struct v4l2_subdev_ops *sd_ops); /** - * vimc_ent_sd_unregister - cleanup and unregister a subdev node - * - * @ved: the vimc_ent_device struct to be cleaned up - * @sd: the v4l2_subdev struct to be unregistered - * - * Helper function cleanup and unregister the struct vimc_ent_device and struct - * v4l2_subdev which represents a subdev node in the topology - */ -void vimc_ent_sd_unregister(struct vimc_ent_device *ved, - struct v4l2_subdev *sd); - -/** - * vimc_link_validate - validates a media link + * 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_link_validate(struct media_link *link); +int vimc_vdev_link_validate(struct media_link *link); #endif |
