diff options
Diffstat (limited to 'drivers/media/platform')
| -rw-r--r-- | drivers/media/platform/vimc/Makefile | 7 | ||||
| -rw-r--r-- | drivers/media/platform/vimc/vimc-capture.c | 99 | ||||
| -rw-r--r-- | drivers/media/platform/vimc/vimc-capture.h | 28 | ||||
| -rw-r--r-- | drivers/media/platform/vimc/vimc-common.c | 38 | ||||
| -rw-r--r-- | drivers/media/platform/vimc/vimc-common.h | 29 | ||||
| -rw-r--r-- | drivers/media/platform/vimc/vimc-core.c | 405 | ||||
| -rw-r--r-- | drivers/media/platform/vimc/vimc-sensor.c | 93 | ||||
| -rw-r--r-- | drivers/media/platform/vimc/vimc-sensor.h | 28 |
8 files changed, 339 insertions, 388 deletions
diff --git a/drivers/media/platform/vimc/Makefile b/drivers/media/platform/vimc/Makefile index 6b6ddf45e3bf..0e5d5ce37a18 100644 --- a/drivers/media/platform/vimc/Makefile +++ b/drivers/media/platform/vimc/Makefile @@ -1,3 +1,6 @@ -vimc-objs := vimc-core.o vimc-capture.o vimc-common.o vimc-sensor.o +vimc-objs := vimc-core.o +vimc_capture-objs := vimc-capture.o +vimc_common-objs := vimc-common.o +vimc_sensor-objs := vimc-sensor.o -obj-$(CONFIG_VIDEO_VIMC) += vimc.o +obj-$(CONFIG_VIDEO_VIMC) += vimc.o vimc_capture.o vimc_common.o vimc_sensor.o diff --git a/drivers/media/platform/vimc/vimc-capture.c b/drivers/media/platform/vimc/vimc-capture.c index 359f59efb44e..14cb32e21130 100644 --- a/drivers/media/platform/vimc/vimc-capture.c +++ b/drivers/media/platform/vimc/vimc-capture.c @@ -15,15 +15,21 @@ * */ +#include <linux/component.h> +#include <linux/module.h> +#include <linux/platform_device.h> #include <media/v4l2-ioctl.h> #include <media/videobuf2-core.h> #include <media/videobuf2-vmalloc.h> -#include "vimc-capture.h" +#include "vimc-common.h" + +#define VIMC_CAP_DRV_NAME "vimc-capture" struct vimc_cap_device { struct vimc_ent_device ved; struct video_device vdev; + struct device *dev; struct v4l2_pix_format format; struct vb2_queue queue; struct list_head buf_list; @@ -131,7 +137,7 @@ static int vimc_cap_s_fmt_vid_cap(struct file *file, void *priv, vimc_cap_try_fmt_vid_cap(file, priv, f); - dev_dbg(vcap->vdev.v4l2_dev->dev, "%s: format update: " + dev_dbg(vcap->dev, "%s: format update: " "old:%dx%d (0x%x, %d, %d, %d, %d) " "new:%dx%d (0x%x, %d, %d, %d, %d)\n", vcap->vdev.name, /* old */ @@ -309,8 +315,7 @@ static int vimc_cap_buffer_prepare(struct vb2_buffer *vb) unsigned long size = vcap->format.sizeimage; if (vb2_plane_size(vb, 0) < size) { - dev_err(vcap->vdev.v4l2_dev->dev, - "%s: buffer too small (%lu < %lu)\n", + dev_err(vcap->dev, "%s: buffer too small (%lu < %lu)\n", vcap->vdev.name, vb2_plane_size(vb, 0), size); return -EINVAL; } @@ -335,8 +340,10 @@ static const struct media_entity_operations vimc_cap_mops = { .link_validate = vimc_link_validate, }; -static void vimc_cap_destroy(struct vimc_ent_device *ved) +static void vimc_cap_comp_unbind(struct device *comp, struct device *master, + void *master_data) { + struct vimc_ent_device *ved = dev_get_drvdata(comp); struct vimc_cap_device *vcap = container_of(ved, struct vimc_cap_device, ved); @@ -385,42 +392,35 @@ static void vimc_cap_process_frame(struct vimc_ent_device *ved, vb2_buffer_done(&vimc_buf->vb2.vb2_buf, VB2_BUF_STATE_DONE); } -struct vimc_ent_device *vimc_cap_create(struct v4l2_device *v4l2_dev, - const char *const name, - u16 num_pads, - const unsigned long *pads_flag) +static int vimc_cap_comp_bind(struct device *comp, struct device *master, + void *master_data) { + struct v4l2_device *v4l2_dev = master_data; + struct vimc_platform_data *pdata = comp->platform_data; const struct vimc_pix_map *vpix; struct vimc_cap_device *vcap; struct video_device *vdev; struct vb2_queue *q; int ret; - /* - * Check entity configuration params - * NOTE: we only support a single sink pad - */ - if (!name || num_pads != 1 || !pads_flag || - !(pads_flag[0] & MEDIA_PAD_FL_SINK)) - return ERR_PTR(-EINVAL); - /* Allocate the vimc_cap_device struct */ vcap = kzalloc(sizeof(*vcap), GFP_KERNEL); if (!vcap) - return ERR_PTR(-ENOMEM); + return -ENOMEM; /* Allocate the pads */ - vcap->ved.pads = vimc_pads_init(num_pads, pads_flag); + vcap->ved.pads = + vimc_pads_init(1, (const unsigned long[1]) {MEDIA_PAD_FL_SINK}); if (IS_ERR(vcap->ved.pads)) { ret = PTR_ERR(vcap->ved.pads); goto err_free_vcap; } /* Initialize the media entity */ - vcap->vdev.entity.name = name; + vcap->vdev.entity.name = pdata->entity_name; vcap->vdev.entity.function = MEDIA_ENT_F_IO_V4L; ret = media_entity_pads_init(&vcap->vdev.entity, - num_pads, vcap->ved.pads); + 1, vcap->ved.pads); if (ret) goto err_clean_pads; @@ -441,9 +441,8 @@ struct vimc_ent_device *vimc_cap_create(struct v4l2_device *v4l2_dev, ret = vb2_queue_init(q); if (ret) { - dev_err(vcap->vdev.v4l2_dev->dev, - "%s: vb2 queue init failed (err=%d)\n", - vcap->vdev.name, ret); + dev_err(comp, "%s: vb2 queue init failed (err=%d)\n", + pdata->entity_name, ret); goto err_clean_m_ent; } @@ -459,10 +458,11 @@ struct vimc_ent_device *vimc_cap_create(struct v4l2_device *v4l2_dev, vcap->format.height; /* Fill the vimc_ent_device struct */ - vcap->ved.destroy = vimc_cap_destroy; vcap->ved.ent = &vcap->vdev.entity; vcap->ved.process_frame = vimc_cap_process_frame; vcap->ved.vdev_get_format = vimc_cap_get_format; + dev_set_drvdata(comp, &vcap->ved); + vcap->dev = comp; /* Initialize the video_device struct */ vdev = &vcap->vdev; @@ -475,19 +475,18 @@ struct vimc_ent_device *vimc_cap_create(struct v4l2_device *v4l2_dev, vdev->queue = q; vdev->v4l2_dev = v4l2_dev; vdev->vfl_dir = VFL_DIR_RX; - strlcpy(vdev->name, name, sizeof(vdev->name)); + strlcpy(vdev->name, pdata->entity_name, sizeof(vdev->name)); video_set_drvdata(vdev, &vcap->ved); /* Register the video_device with the v4l2 and the media framework */ ret = video_register_device(vdev, VFL_TYPE_GRABBER, -1); if (ret) { - dev_err(vcap->vdev.v4l2_dev->dev, - "%s: video register failed (err=%d)\n", + dev_err(comp, "%s: video register failed (err=%d)\n", vcap->vdev.name, ret); goto err_release_queue; } - return &vcap->ved; + return 0; err_release_queue: vb2_queue_release(q); @@ -498,5 +497,45 @@ err_clean_pads: err_free_vcap: kfree(vcap); - return ERR_PTR(ret); + return ret; } + +static const struct component_ops vimc_cap_comp_ops = { + .bind = vimc_cap_comp_bind, + .unbind = vimc_cap_comp_unbind, +}; + +static int vimc_cap_probe(struct platform_device *pdev) +{ + return component_add(&pdev->dev, &vimc_cap_comp_ops); +} + +static int vimc_cap_remove(struct platform_device *pdev) +{ + component_del(&pdev->dev, &vimc_cap_comp_ops); + + return 0; +} + +static struct platform_driver vimc_cap_pdrv = { + .probe = vimc_cap_probe, + .remove = vimc_cap_remove, + .driver = { + .name = VIMC_CAP_DRV_NAME, + }, +}; + +static const struct platform_device_id vimc_cap_driver_ids[] = { + { + .name = VIMC_CAP_DRV_NAME, + }, + { } +}; + +module_platform_driver(vimc_cap_pdrv); + +MODULE_DEVICE_TABLE(platform, vimc_cap_driver_ids); + +MODULE_DESCRIPTION("Virtual Media Controller Driver (VIMC) Capture"); +MODULE_AUTHOR("Helen Mae Koike Fornazier <helen.fornazier@gmail.com>"); +MODULE_LICENSE("GPL"); diff --git a/drivers/media/platform/vimc/vimc-capture.h b/drivers/media/platform/vimc/vimc-capture.h deleted file mode 100644 index 7e5c7073bcc1..000000000000 --- a/drivers/media/platform/vimc/vimc-capture.h +++ /dev/null @@ -1,28 +0,0 @@ -/* - * vimc-capture.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_CAPTURE_H_ -#define _VIMC_CAPTURE_H_ - -#include "vimc-common.h" - -struct vimc_ent_device *vimc_cap_create(struct v4l2_device *v4l2_dev, - const char *const name, - u16 num_pads, - const unsigned long *pads_flag); - -#endif diff --git a/drivers/media/platform/vimc/vimc-common.c b/drivers/media/platform/vimc/vimc-common.c index b69805574c67..da7f2b7a2e58 100644 --- a/drivers/media/platform/vimc/vimc-common.c +++ b/drivers/media/platform/vimc/vimc-common.c @@ -15,6 +15,9 @@ * */ +#include <linux/init.h> +#include <linux/module.h> + #include "vimc-common.h" static const struct vimc_pix_map vimc_pix_map_list[] = { @@ -151,6 +154,7 @@ const struct vimc_pix_map *vimc_pix_map_by_index(unsigned int i) return &vimc_pix_map_list[i]; } +EXPORT_SYMBOL_GPL(vimc_pix_map_by_index); const struct vimc_pix_map *vimc_pix_map_by_code(u32 code) { @@ -162,6 +166,7 @@ const struct vimc_pix_map *vimc_pix_map_by_code(u32 code) } return NULL; } +EXPORT_SYMBOL_GPL(vimc_pix_map_by_code); const struct vimc_pix_map *vimc_pix_map_by_pixelformat(u32 pixelformat) { @@ -173,6 +178,7 @@ const struct vimc_pix_map *vimc_pix_map_by_pixelformat(u32 pixelformat) } return NULL; } +EXPORT_SYMBOL_GPL(vimc_pix_map_by_pixelformat); int vimc_propagate_frame(struct media_pad *src, const void *frame) { @@ -207,6 +213,7 @@ int vimc_propagate_frame(struct media_pad *src, const void *frame) return 0; } +EXPORT_SYMBOL_GPL(vimc_propagate_frame); /* Helper function to allocate and initialize pads */ struct media_pad *vimc_pads_init(u16 num_pads, const unsigned long *pads_flag) @@ -227,6 +234,7 @@ struct media_pad *vimc_pads_init(u16 num_pads, const unsigned long *pads_flag) return pads; } +EXPORT_SYMBOL_GPL(vimc_pads_init); int vimc_pipeline_s_stream(struct media_entity *ent, int enable) { @@ -242,14 +250,8 @@ int vimc_pipeline_s_stream(struct media_entity *ent, int enable) /* Start the stream in the subdevice direct connected */ pad = media_entity_remote_pad(&ent->pads[i]); - /* - * if this is a raw node from vimc-core, then there is - * nothing to activate - * TODO: remove this when there are no more raw nodes in the - * core and return error instead - */ - if (pad->entity->obj_type == MEDIA_ENTITY_TYPE_BASE) - continue; + if (!is_media_entity_v4l2_subdev(pad->entity)) + return -EINVAL; sd = media_entity_to_v4l2_subdev(pad->entity); ret = v4l2_subdev_call(sd, video, s_stream, enable); @@ -259,6 +261,7 @@ int vimc_pipeline_s_stream(struct media_entity *ent, int enable) return 0; } +EXPORT_SYMBOL_GPL(vimc_pipeline_s_stream); static int vimc_get_mbus_format(struct media_pad *pad, struct v4l2_subdev_format *fmt) @@ -301,14 +304,6 @@ int vimc_link_validate(struct media_link *link) struct v4l2_subdev_format source_fmt, sink_fmt; int ret; - /* - * if it is a raw node from vimc-core, ignore the link for now - * TODO: remove this when there are no more raw nodes in the - * core and return error instead - */ - if (link->source->entity->obj_type == MEDIA_ENTITY_TYPE_BASE) - return 0; - ret = vimc_get_mbus_format(link->source, &source_fmt); if (ret) return ret; @@ -378,6 +373,7 @@ int vimc_link_validate(struct media_link *link) return 0; } +EXPORT_SYMBOL_GPL(vimc_link_validate); static const struct media_entity_operations vimc_ent_sd_mops = { .link_validate = vimc_link_validate, @@ -390,8 +386,7 @@ int vimc_ent_sd_register(struct vimc_ent_device *ved, u32 function, u16 num_pads, const unsigned long *pads_flag, - const struct v4l2_subdev_ops *sd_ops, - void (*sd_destroy)(struct vimc_ent_device *)) + const struct v4l2_subdev_ops *sd_ops) { int ret; @@ -401,7 +396,6 @@ int vimc_ent_sd_register(struct vimc_ent_device *ved, return PTR_ERR(ved->pads); /* Fill the vimc_ent_device struct */ - ved->destroy = sd_destroy; ved->ent = &sd->entity; /* Initialize the subdev */ @@ -437,6 +431,7 @@ err_clean_pads: vimc_pads_cleanup(ved->pads); return ret; } +EXPORT_SYMBOL_GPL(vimc_ent_sd_register); void vimc_ent_sd_unregister(struct vimc_ent_device *ved, struct v4l2_subdev *sd) { @@ -444,3 +439,8 @@ void vimc_ent_sd_unregister(struct vimc_ent_device *ved, struct v4l2_subdev *sd) media_entity_cleanup(ved->ent); vimc_pads_cleanup(ved->pads); } +EXPORT_SYMBOL_GPL(vimc_ent_sd_unregister); + +MODULE_DESCRIPTION("Virtual Media Controller Driver (VIMC) Common"); +MODULE_AUTHOR("Helen Koike <helen.fornazier@gmail.com>"); +MODULE_LICENSE("GPL"); diff --git a/drivers/media/platform/vimc/vimc-common.h b/drivers/media/platform/vimc/vimc-common.h index fb3463c06185..a9c1cfdc0dff 100644 --- a/drivers/media/platform/vimc/vimc-common.h +++ b/drivers/media/platform/vimc/vimc-common.h @@ -1,5 +1,5 @@ /* - * vimc-ccommon.h Virtual Media Controller Driver + * vimc-common.h Virtual Media Controller Driver * * Copyright (C) 2015-2017 Helen Koike <helen.fornazier@gmail.com> * @@ -54,6 +54,21 @@ 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 @@ -74,7 +89,6 @@ struct vimc_pix_map { * * @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 * @vdev_get_format: callback that returns the current format a pad, used * only when is_media_entity_v4l2_video_device(ent) returns @@ -91,7 +105,6 @@ struct vimc_pix_map { 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); void (*vdev_get_format)(struct vimc_ent_device *ved, @@ -176,7 +189,6 @@ const struct vimc_pix_map *vimc_pix_map_by_pixelformat(u32 pixelformat); * @num_pads: number of pads to initialize * @pads_flag: flags to use in each pad * @sd_ops: pointer to &struct v4l2_subdev_ops. - * @sd_destroy: callback to destroy the node * * Helper function initialize and register the struct vimc_ent_device and struct * v4l2_subdev which represents a subdev node in the topology @@ -188,14 +200,13 @@ int vimc_ent_sd_register(struct vimc_ent_device *ved, u32 function, u16 num_pads, const unsigned long *pads_flag, - const struct v4l2_subdev_ops *sd_ops, - void (*sd_destroy)(struct vimc_ent_device *)); + const struct v4l2_subdev_ops *sd_ops); /** - * vimc_ent_sd_register - initialize and register a subdev node + * vimc_ent_sd_unregister - cleanup and unregister a subdev node * - * @ved: the vimc_ent_device struct to be initialize - * @sd: the v4l2_subdev struct to be initialize and registered + * @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 diff --git a/drivers/media/platform/vimc/vimc-core.c b/drivers/media/platform/vimc/vimc-core.c index afc79e2f3029..51c0eee61ca6 100644 --- a/drivers/media/platform/vimc/vimc-core.c +++ b/drivers/media/platform/vimc/vimc-core.c @@ -15,15 +15,14 @@ * */ +#include <linux/component.h> #include <linux/init.h> #include <linux/module.h> #include <linux/platform_device.h> #include <media/media-device.h> #include <media/v4l2-device.h> -#include "vimc-capture.h" #include "vimc-common.h" -#include "vimc-sensor.h" #define VIMC_PDEV_NAME "vimc" #define VIMC_MDEV_MODEL_NAME "VIMC MDEV" @@ -37,10 +36,10 @@ } struct vimc_device { - /* - * The pipeline configuration - * (filled before calling vimc_device_register) - */ + /* The platform device */ + struct platform_device pdev; + + /* The pipeline configuration */ const struct vimc_pipeline_config *pipe_cfg; /* The Associated media_device parent */ @@ -49,43 +48,14 @@ struct vimc_device { /* Internal v4l2 parent device*/ struct v4l2_device v4l2_dev; - /* Internal topology */ - struct vimc_ent_device **ved; -}; - -/** - * enum vimc_ent_node - Select the functionality of a node in the topology - * @VIMC_ENT_NODE_SENSOR: A node of type SENSOR simulates a camera sensor - * generating internal images in bayer format and - * propagating those images through the pipeline - * @VIMC_ENT_NODE_CAPTURE: A node of type CAPTURE is a v4l2 video_device - * that exposes the received image from the - * pipeline to the user space - * @VIMC_ENT_NODE_INPUT: A node of type INPUT is a v4l2 video_device that - * receives images from the user space and - * propagates them through the pipeline - * @VIMC_ENT_NODE_DEBAYER: A node type DEBAYER expects to receive a frame - * in bayer format converts it to RGB - * @VIMC_ENT_NODE_SCALER: A node of type SCALER scales the received image - * by a given multiplier - * - * This enum is used in the entity configuration struct to allow the definition - * of a custom topology specifying the role of each node on it. - */ -enum vimc_ent_node { - VIMC_ENT_NODE_SENSOR, - VIMC_ENT_NODE_CAPTURE, - VIMC_ENT_NODE_INPUT, - VIMC_ENT_NODE_DEBAYER, - VIMC_ENT_NODE_SCALER, + /* Subdevices */ + struct platform_device **subdevs; }; /* Structure which describes individual configuration for each entity */ struct vimc_ent_config { const char *name; - size_t pads_qty; - const unsigned long *pads_flag; - enum vimc_ent_node node; + const char *drv; }; /* Structure which describes links between entities */ @@ -112,60 +82,40 @@ struct vimc_pipeline_config { static const struct vimc_ent_config ent_config[] = { { .name = "Sensor A", - .pads_qty = 1, - .pads_flag = (const unsigned long[]){MEDIA_PAD_FL_SOURCE}, - .node = VIMC_ENT_NODE_SENSOR, + .drv = "vimc-sensor", }, { .name = "Sensor B", - .pads_qty = 1, - .pads_flag = (const unsigned long[]){MEDIA_PAD_FL_SOURCE}, - .node = VIMC_ENT_NODE_SENSOR, + .drv = "vimc-sensor", }, { .name = "Debayer A", - .pads_qty = 2, - .pads_flag = (const unsigned long[]){MEDIA_PAD_FL_SINK, - MEDIA_PAD_FL_SOURCE}, - .node = VIMC_ENT_NODE_DEBAYER, + .drv = "vimc-debayer", }, { .name = "Debayer B", - .pads_qty = 2, - .pads_flag = (const unsigned long[]){MEDIA_PAD_FL_SINK, - MEDIA_PAD_FL_SOURCE}, - .node = VIMC_ENT_NODE_DEBAYER, + .drv = "vimc-debayer", }, { .name = "Raw Capture 0", - .pads_qty = 1, - .pads_flag = (const unsigned long[]){MEDIA_PAD_FL_SINK}, - .node = VIMC_ENT_NODE_CAPTURE, + .drv = "vimc-capture", }, { .name = "Raw Capture 1", - .pads_qty = 1, - .pads_flag = (const unsigned long[]){MEDIA_PAD_FL_SINK}, - .node = VIMC_ENT_NODE_CAPTURE, + .drv = "vimc-capture", }, { .name = "RGB/YUV Input", - .pads_qty = 1, - .pads_flag = (const unsigned long[]){MEDIA_PAD_FL_SOURCE}, - .node = VIMC_ENT_NODE_INPUT, + /* TODO: change this to vimc-input when it is implemented */ + .drv = "vimc-sensor", }, { .name = "Scaler", - .pads_qty = 2, - .pads_flag = (const unsigned long[]){MEDIA_PAD_FL_SINK, - MEDIA_PAD_FL_SOURCE}, - .node = VIMC_ENT_NODE_SCALER, + .drv = "vimc-scaler", }, { .name = "RGB/YUV Capture", - .pads_qty = 1, - .pads_flag = (const unsigned long[]){MEDIA_PAD_FL_SINK}, - .node = VIMC_ENT_NODE_CAPTURE, + .drv = "vimc-capture", }, }; @@ -197,111 +147,40 @@ static const struct vimc_pipeline_config pipe_cfg = { /* -------------------------------------------------------------------------- */ -static void vimc_device_unregister(struct vimc_device *vimc) +static int vimc_create_links(struct vimc_device *vimc) { unsigned int i; - - media_device_unregister(&vimc->mdev); - /* Cleanup (only initialized) entities */ - for (i = 0; i < vimc->pipe_cfg->num_ents; i++) { - if (vimc->ved[i] && vimc->ved[i]->destroy) - vimc->ved[i]->destroy(vimc->ved[i]); - - vimc->ved[i] = NULL; - } - v4l2_device_unregister(&vimc->v4l2_dev); - media_device_cleanup(&vimc->mdev); -} - -/* - * TODO: remove this function when all the - * entities specific code are implemented - */ -static void vimc_raw_destroy(struct vimc_ent_device *ved) -{ - media_device_unregister_entity(ved->ent); - - media_entity_cleanup(ved->ent); - - vimc_pads_cleanup(ved->pads); - - kfree(ved->ent); - - kfree(ved); -} - -/* - * TODO: remove this function when all the - * entities specific code are implemented - */ -static struct vimc_ent_device *vimc_raw_create(struct v4l2_device *v4l2_dev, - const char *const name, - u16 num_pads, - const unsigned long *pads_flag) -{ - struct vimc_ent_device *ved; int ret; - /* Allocate the main ved struct */ - ved = kzalloc(sizeof(*ved), GFP_KERNEL); - if (!ved) - return ERR_PTR(-ENOMEM); - - /* Allocate the media entity */ - ved->ent = kzalloc(sizeof(*ved->ent), GFP_KERNEL); - if (!ved->ent) { - ret = -ENOMEM; - goto err_free_ved; - } - - /* Allocate the pads */ - ved->pads = vimc_pads_init(num_pads, pads_flag); - if (IS_ERR(ved->pads)) { - ret = PTR_ERR(ved->pads); - goto err_free_ent; + /* Initialize the links between entities */ + for (i = 0; i < vimc->pipe_cfg->num_links; i++) { + const struct vimc_ent_link *link = &vimc->pipe_cfg->links[i]; + /* + * TODO: Check another way of retrieving ved struct without + * relying on platform_get_drvdata + */ + struct vimc_ent_device *ved_src = + platform_get_drvdata(vimc->subdevs[link->src_ent]); + struct vimc_ent_device *ved_sink = + platform_get_drvdata(vimc->subdevs[link->sink_ent]); + + ret = media_create_pad_link(ved_src->ent, link->src_pad, + ved_sink->ent, link->sink_pad, + link->flags); + if (ret) + return ret; } - /* Initialize the media entity */ - ved->ent->name = name; - ved->ent->function = MEDIA_ENT_F_V4L2_SUBDEV_UNKNOWN; - ret = media_entity_pads_init(ved->ent, num_pads, ved->pads); - if (ret) - goto err_cleanup_pads; - - /* Register the media entity */ - ret = media_device_register_entity(v4l2_dev->mdev, ved->ent); - if (ret) - goto err_cleanup_entity; - - /* Fill out the destroy function and return */ - ved->destroy = vimc_raw_destroy; - return ved; - -err_cleanup_entity: - media_entity_cleanup(ved->ent); -err_cleanup_pads: - vimc_pads_cleanup(ved->pads); -err_free_ent: - kfree(ved->ent); -err_free_ved: - kfree(ved); - - return ERR_PTR(ret); + return 0; } -static int vimc_device_register(struct vimc_device *vimc) +static int vimc_comp_bind(struct device *master) { - unsigned int i; + struct vimc_device *vimc = container_of(to_platform_device(master), + struct vimc_device, pdev); int ret; - /* Allocate memory for the vimc_ent_devices pointers */ - vimc->ved = devm_kcalloc(vimc->mdev.dev, vimc->pipe_cfg->num_ents, - sizeof(*vimc->ved), GFP_KERNEL); - if (!vimc->ved) - return -ENOMEM; - - /* Link the media device within the v4l2_device */ - vimc->v4l2_dev.mdev = &vimc->mdev; + dev_dbg(master, "bind"); /* Register the v4l2 struct */ ret = v4l2_device_register(vimc->mdev.dev, &vimc->v4l2_dev); @@ -311,66 +190,22 @@ static int vimc_device_register(struct vimc_device *vimc) return ret; } - /* Initialize entities */ - for (i = 0; i < vimc->pipe_cfg->num_ents; i++) { - struct vimc_ent_device *(*create_func)(struct v4l2_device *, - const char *const, - u16, - const unsigned long *); - - /* Register the specific node */ - switch (vimc->pipe_cfg->ents[i].node) { - case VIMC_ENT_NODE_SENSOR: - create_func = vimc_sen_create; - break; - - case VIMC_ENT_NODE_CAPTURE: - create_func = vimc_cap_create; - break; - - /* TODO: Instantiate the specific topology node */ - case VIMC_ENT_NODE_INPUT: - case VIMC_ENT_NODE_DEBAYER: - case VIMC_ENT_NODE_SCALER: - default: - /* - * TODO: remove this when all the entities specific - * code are implemented - */ - create_func = vimc_raw_create; - break; - } - - vimc->ved[i] = create_func(&vimc->v4l2_dev, - vimc->pipe_cfg->ents[i].name, - vimc->pipe_cfg->ents[i].pads_qty, - vimc->pipe_cfg->ents[i].pads_flag); - if (IS_ERR(vimc->ved[i])) { - ret = PTR_ERR(vimc->ved[i]); - vimc->ved[i] = NULL; - goto err; - } - } - - /* Initialize the links between entities */ - for (i = 0; i < vimc->pipe_cfg->num_links; i++) { - const struct vimc_ent_link *link = &vimc->pipe_cfg->links[i]; + /* Bind subdevices */ + ret = component_bind_all(master, &vimc->v4l2_dev); + if (ret) + goto err_v4l2_unregister; - ret = media_create_pad_link(vimc->ved[link->src_ent]->ent, - link->src_pad, - vimc->ved[link->sink_ent]->ent, - link->sink_pad, - link->flags); - if (ret) - goto err; - } + /* Initialize links */ + ret = vimc_create_links(vimc); + if (ret) + goto err_comp_unbind_all; /* Register the media device */ ret = media_device_register(&vimc->mdev); if (ret) { dev_err(vimc->mdev.dev, "media device register failed (err=%d)\n", ret); - return ret; + goto err_comp_unbind_all; } /* Expose all subdev's nodes*/ @@ -379,32 +214,106 @@ static int vimc_device_register(struct vimc_device *vimc) dev_err(vimc->mdev.dev, "vimc subdev nodes registration failed (err=%d)\n", ret); - goto err; + goto err_mdev_unregister; } return 0; -err: - /* Destroy the so far created topology */ - vimc_device_unregister(vimc); +err_mdev_unregister: + media_device_unregister(&vimc->mdev); +err_comp_unbind_all: + component_unbind_all(master, NULL); +err_v4l2_unregister: + v4l2_device_unregister(&vimc->v4l2_dev); return ret; } +static void vimc_comp_unbind(struct device *master) +{ + struct vimc_device *vimc = container_of(to_platform_device(master), + struct vimc_device, pdev); + + dev_dbg(master, "unbind"); + + media_device_unregister(&vimc->mdev); + component_unbind_all(master, NULL); + v4l2_device_unregister(&vimc->v4l2_dev); +} + +static int vimc_comp_compare(struct device *comp, void *data) +{ + const struct platform_device *pdev = to_platform_device(comp); + const char *name = data; + + return !strcmp(pdev->dev.platform_data, name); +} + +static struct component_match *vimc_add_subdevs(struct vimc_device *vimc) +{ + struct component_match *match = NULL; + struct vimc_platform_data pdata; + int i; + + for (i = 0; i < vimc->pipe_cfg->num_ents; i++) { + dev_dbg(&vimc->pdev.dev, "new pdev for %s\n", + vimc->pipe_cfg->ents[i].drv); + + strlcpy(pdata.entity_name, vimc->pipe_cfg->ents[i].name, + sizeof(pdata.entity_name)); + + vimc->subdevs[i] = platform_device_register_data(&vimc->pdev.dev, + vimc->pipe_cfg->ents[i].drv, + PLATFORM_DEVID_AUTO, + &pdata, + sizeof(pdata)); + if (!vimc->subdevs[i]) { + while (--i >= 0) + platform_device_unregister(vimc->subdevs[i]); + + return ERR_PTR(-ENOMEM); + } + + component_match_add(&vimc->pdev.dev, &match, vimc_comp_compare, + (void *)vimc->pipe_cfg->ents[i].name); + } + + return match; +} + +static void vimc_rm_subdevs(struct vimc_device *vimc) +{ + unsigned int i; + + for (i = 0; i < vimc->pipe_cfg->num_ents; i++) + platform_device_unregister(vimc->subdevs[i]); +} + +static const struct component_master_ops vimc_comp_ops = { + .bind = vimc_comp_bind, + .unbind = vimc_comp_unbind, +}; + static int vimc_probe(struct platform_device *pdev) { - struct vimc_device *vimc; + struct vimc_device *vimc = container_of(pdev, struct vimc_device, pdev); + struct component_match *match = NULL; int ret; - /* Prepare the vimc topology structure */ + dev_dbg(&pdev->dev, "probe"); - /* Allocate memory for the vimc structure */ - vimc = kzalloc(sizeof(*vimc), GFP_KERNEL); - if (!vimc) + /* Create platform_device for each entity in the topology*/ + vimc->subdevs = devm_kcalloc(&vimc->pdev.dev, vimc->pipe_cfg->num_ents, + sizeof(*vimc->subdevs), GFP_KERNEL); + if (!vimc->subdevs) return -ENOMEM; - /* Set the pipeline configuration struct */ - vimc->pipe_cfg = &pipe_cfg; + match = vimc_add_subdevs(vimc); + if (IS_ERR(match)) + return PTR_ERR(match); + + /* Link the media device within the v4l2_device */ + vimc->v4l2_dev.mdev = &vimc->mdev; /* Initialize media device */ strlcpy(vimc->mdev.model, VIMC_MDEV_MODEL_NAME, @@ -412,28 +321,27 @@ static int vimc_probe(struct platform_device *pdev) vimc->mdev.dev = &pdev->dev; media_device_init(&vimc->mdev); - /* Create vimc topology */ - ret = vimc_device_register(vimc); + /* Add self to the component system */ + ret = component_master_add_with_match(&pdev->dev, &vimc_comp_ops, + match); if (ret) { - dev_err(vimc->mdev.dev, - "vimc device registration failed (err=%d)\n", ret); + media_device_cleanup(&vimc->mdev); + vimc_rm_subdevs(vimc); kfree(vimc); return ret; } - /* Link the topology object with the platform device object */ - platform_set_drvdata(pdev, vimc); - return 0; } static int vimc_remove(struct platform_device *pdev) { - struct vimc_device *vimc = platform_get_drvdata(pdev); + struct vimc_device *vimc = container_of(pdev, struct vimc_device, pdev); - /* Destroy all the topology */ - vimc_device_unregister(vimc); - kfree(vimc); + dev_dbg(&pdev->dev, "remove"); + + component_master_del(&pdev->dev, &vimc_comp_ops); + vimc_rm_subdevs(vimc); return 0; } @@ -442,9 +350,12 @@ static void vimc_dev_release(struct device *dev) { } -static struct platform_device vimc_pdev = { - .name = VIMC_PDEV_NAME, - .dev.release = vimc_dev_release, +static struct vimc_device vimc_dev = { + .pipe_cfg = &pipe_cfg, + .pdev = { + .name = VIMC_PDEV_NAME, + .dev.release = vimc_dev_release, + } }; static struct platform_driver vimc_pdrv = { @@ -459,29 +370,29 @@ static int __init vimc_init(void) { int ret; - ret = platform_device_register(&vimc_pdev); + ret = platform_device_register(&vimc_dev.pdev); if (ret) { - dev_err(&vimc_pdev.dev, + dev_err(&vimc_dev.pdev.dev, "platform device registration failed (err=%d)\n", ret); return ret; } ret = platform_driver_register(&vimc_pdrv); if (ret) { - dev_err(&vimc_pdev.dev, + dev_err(&vimc_dev.pdev.dev, "platform driver registration failed (err=%d)\n", ret); - - platform_device_unregister(&vimc_pdev); + platform_driver_unregister(&vimc_pdrv); + return ret; } - return ret; + return 0; } static void __exit vimc_exit(void) { platform_driver_unregister(&vimc_pdrv); - platform_device_unregister(&vimc_pdev); + platform_device_unregister(&vimc_dev.pdev); } module_init(vimc_init); diff --git a/drivers/media/platform/vimc/vimc-sensor.c b/drivers/media/platform/vimc/vimc-sensor.c index d4f97050b544..5ea7b0853936 100644 --- a/drivers/media/platform/vimc/vimc-sensor.c +++ b/drivers/media/platform/vimc/vimc-sensor.c @@ -15,18 +15,24 @@ * */ +#include <linux/component.h> #include <linux/freezer.h> #include <linux/kthread.h> +#include <linux/module.h> +#include <linux/platform_device.h> #include <linux/v4l2-mediabus.h> #include <linux/vmalloc.h> #include <media/v4l2-subdev.h> #include <media/v4l2-tpg.h> -#include "vimc-sensor.h" +#include "vimc-common.h" + +#define VIMC_SEN_DRV_NAME "vimc-sensor" struct vimc_sen_device { struct vimc_ent_device ved; struct v4l2_subdev sd; + struct device *dev; struct tpg_data tpg; struct task_struct *kthread_sen; u8 *frame; @@ -166,7 +172,7 @@ static int vimc_sen_set_fmt(struct v4l2_subdev *sd, /* Set the new format */ vimc_sen_adjust_fmt(&fmt->format); - dev_dbg(vsen->sd.v4l2_dev->mdev->dev, "%s: format update: " + dev_dbg(vsen->dev, "%s: format update: " "old:%dx%d (0x%x, %d, %d, %d, %d) " "new:%dx%d (0x%x, %d, %d, %d, %d)\n", vsen->sd.name, /* old */ @@ -252,8 +258,8 @@ static int vimc_sen_s_stream(struct v4l2_subdev *sd, int enable) vsen->kthread_sen = kthread_run(vimc_sen_tpg_thread, vsen, "%s-sen", vsen->sd.v4l2_dev->name); if (IS_ERR(vsen->kthread_sen)) { - dev_err(vsen->sd.v4l2_dev->dev, - "%s: kernel_thread() failed\n", vsen->sd.name); + dev_err(vsen->dev, "%s: kernel_thread() failed\n", + vsen->sd.name); vfree(vsen->frame); vsen->frame = NULL; return PTR_ERR(vsen->kthread_sen); @@ -285,8 +291,10 @@ static const struct v4l2_subdev_ops vimc_sen_ops = { .video = &vimc_sen_video_ops, }; -static void vimc_sen_destroy(struct vimc_ent_device *ved) +static void vimc_sen_comp_unbind(struct device *comp, struct device *master, + void *master_data) { + struct vimc_ent_device *ved = dev_get_drvdata(comp); struct vimc_sen_device *vsen = container_of(ved, struct vimc_sen_device, ved); @@ -295,36 +303,31 @@ static void vimc_sen_destroy(struct vimc_ent_device *ved) kfree(vsen); } -struct vimc_ent_device *vimc_sen_create(struct v4l2_device *v4l2_dev, - const char *const name, - u16 num_pads, - const unsigned long *pads_flag) +static int vimc_sen_comp_bind(struct device *comp, struct device *master, + void *master_data) { + struct v4l2_device *v4l2_dev = master_data; + struct vimc_platform_data *pdata = comp->platform_data; struct vimc_sen_device *vsen; - unsigned int i; int ret; - /* NOTE: a sensor node may be created with more then one pad */ - if (!name || !num_pads || !pads_flag) - return ERR_PTR(-EINVAL); - - /* check if all pads are sources */ - for (i = 0; i < num_pads; i++) - if (!(pads_flag[i] & MEDIA_PAD_FL_SOURCE)) - return ERR_PTR(-EINVAL); - /* Allocate the vsen struct */ vsen = kzalloc(sizeof(*vsen), GFP_KERNEL); if (!vsen) - return ERR_PTR(-ENOMEM); + return -ENOMEM; /* Initialize ved and sd */ - ret = vimc_ent_sd_register(&vsen->ved, &vsen->sd, v4l2_dev, name, - MEDIA_ENT_F_CAM_SENSOR, num_pads, pads_flag, - &vimc_sen_ops, vimc_sen_destroy); + ret = vimc_ent_sd_register(&vsen->ved, &vsen->sd, v4l2_dev, + pdata->entity_name, + MEDIA_ENT_F_ATV_DECODER, 1, + (const unsigned long[1]) {MEDIA_PAD_FL_SOURCE}, + &vimc_sen_ops); if (ret) goto err_free_vsen; + dev_set_drvdata(comp, &vsen->ved); + vsen->dev = comp; + /* Initialize the frame format */ vsen->mbus_format = fmt_default; @@ -335,12 +338,52 @@ struct vimc_ent_device *vimc_sen_create(struct v4l2_device *v4l2_dev, if (ret) goto err_unregister_ent_sd; - return &vsen->ved; + return 0; err_unregister_ent_sd: vimc_ent_sd_unregister(&vsen->ved, &vsen->sd); err_free_vsen: kfree(vsen); - return ERR_PTR(ret); + return ret; } + +static const struct component_ops vimc_sen_comp_ops = { + .bind = vimc_sen_comp_bind, + .unbind = vimc_sen_comp_unbind, +}; + +static int vimc_sen_probe(struct platform_device *pdev) +{ + return component_add(&pdev->dev, &vimc_sen_comp_ops); +} + +static int vimc_sen_remove(struct platform_device *pdev) +{ + component_del(&pdev->dev, &vimc_sen_comp_ops); + + return 0; +} + +static struct platform_driver vimc_sen_pdrv = { + .probe = vimc_sen_probe, + .remove = vimc_sen_remove, + .driver = { + .name = VIMC_SEN_DRV_NAME, + }, +}; + +static const struct platform_device_id vimc_sen_driver_ids[] = { + { + .name = VIMC_SEN_DRV_NAME, + }, + { } +}; + +module_platform_driver(vimc_sen_pdrv); + +MODULE_DEVICE_TABLE(platform, vimc_sen_driver_ids); + +MODULE_DESCRIPTION("Virtual Media Controller Driver (VIMC) Sensor"); +MODULE_AUTHOR("Helen Mae Koike Fornazier <helen.fornazier@gmail.com>"); +MODULE_LICENSE("GPL"); diff --git a/drivers/media/platform/vimc/vimc-sensor.h b/drivers/media/platform/vimc/vimc-sensor.h deleted file mode 100644 index 580dcec3f79c..000000000000 --- a/drivers/media/platform/vimc/vimc-sensor.h +++ /dev/null @@ -1,28 +0,0 @@ -/* - * vimc-sensor.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_SENSOR_H_ -#define _VIMC_SENSOR_H_ - -#include "vimc-common.h" - -struct vimc_ent_device *vimc_sen_create(struct v4l2_device *v4l2_dev, - const char *const name, - u16 num_pads, - const unsigned long *pads_flag); - -#endif |