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Diffstat (limited to 'drivers/media/platform/vimc/vimc-common.h')
-rw-r--r--drivers/media/platform/vimc/vimc-common.h120
1 files changed, 64 insertions, 56 deletions
diff --git a/drivers/media/platform/vimc/vimc-common.h b/drivers/media/platform/vimc/vimc-common.h
index 9c2e0e216c6b..87eb8259c2a8 100644
--- a/drivers/media/platform/vimc/vimc-common.h
+++ b/drivers/media/platform/vimc/vimc-common.h
@@ -8,6 +8,7 @@
#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>
@@ -18,6 +19,7 @@
#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
@@ -26,6 +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
*
@@ -53,21 +59,6 @@ do { \
} while (0)
/**
- * struct vimc_platform_data - platform data to components
- *
- * @entity_name: The name of the entity to be created
- *
- * 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 vimc_platform_data {
- char entity_name[32];
-};
-
-/**
* struct vimc_pix_map - maps media bus code with v4l2 pixel format
*
* @code: media bus format code defined by MEDIA_BUS_FMT_* macros
@@ -85,10 +76,11 @@ struct vimc_pix_map {
};
/**
- * 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
@@ -103,8 +95,8 @@ struct vimc_pix_map {
* media_entity
*/
struct vimc_ent_device {
+ struct device *dev;
struct media_entity *ent;
- struct media_pad *pads;
void * (*process_frame)(struct vimc_ent_device *ved,
const void *frame);
void (*vdev_get_format)(struct vimc_ent_device *ved,
@@ -112,38 +104,65 @@ struct vimc_ent_device {
};
/**
- * vimc_pads_init - initialize pads
- *
- * @num_pads: number of pads to initialize
- * @pads_flags: flags to use in each pad
+ * struct vimc_device - main device for vimc driver
*
- * Helper functions to allocate/initialize pads
+ * @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
*/
-struct media_pad *vimc_pads_init(u16 num_pads,
- const unsigned long *pads_flag);
+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_pads_cleanup - free pads
- *
- * @pads: pointer to the pads
- *
- * Helper function to free the pads initialized with vimc_pads_init
+ * 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
*/
-static inline void vimc_pads_cleanup(struct media_pad *pads)
-{
- kfree(pads);
-}
+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_pipeline_s_stream - start stream through the pipeline
+ * vimc_is_source - returns true if the entity has only source pads
*
- * @ent: the pointer to struct media_entity for the node
- * @enable: 1 to start the stream and 0 to stop
+ * @ent: pointer to &struct media_entity
*
- * Helper function to call the s_stream of the subdevices connected
- * in all the sink pads of the entity
*/
-int vimc_pipeline_s_stream(struct media_entity *ent, int enable);
+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_pix_map_by_index - get vimc_pix_map struct by its index
@@ -176,7 +195,8 @@ const struct vimc_pix_map *vimc_pix_map_by_pixelformat(u32 pixelformat);
* 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.
*
@@ -189,29 +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