/* * vsp1_entity.c -- R-Car VSP1 Base Entity * * Copyright (C) 2013-2014 Renesas Electronics Corporation * * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.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. */ #include #include #include #include #include #include "vsp1.h" #include "vsp1_dl.h" #include "vsp1_entity.h" #include "vsp1_pipe.h" void vsp1_mod_write(struct vsp1_entity *e, u32 reg, u32 data) { struct vsp1_pipeline *pipe = to_vsp1_pipeline(&e->subdev.entity); vsp1_dl_list_write(pipe->dl, reg, data); } void vsp1_entity_route_setup(struct vsp1_entity *source) { struct vsp1_entity *sink; if (source->route->reg == 0) return; sink = container_of(source->sink, struct vsp1_entity, subdev.entity); vsp1_mod_write(source, source->route->reg, sink->route->inputs[source->sink_pad]); } /* ----------------------------------------------------------------------------- * V4L2 Subdevice Operations */ struct v4l2_mbus_framefmt * vsp1_entity_get_pad_format(struct vsp1_entity *entity, struct v4l2_subdev_pad_config *cfg, unsigned int pad, u32 which) { switch (which) { case V4L2_SUBDEV_FORMAT_TRY: return v4l2_subdev_get_try_format(&entity->subdev, cfg, pad); case V4L2_SUBDEV_FORMAT_ACTIVE: return &entity->formats[pad]; default: return NULL; } } /* * vsp1_entity_init_cfg - Initialize formats on all pads * @subdev: V4L2 subdevice * @cfg: V4L2 subdev pad configuration * * Initialize all pad formats with default values in the given pad config. This * function can be used as a handler for the subdev pad::init_cfg operation. */ int vsp1_entity_init_cfg(struct v4l2_subdev *subdev, struct v4l2_subdev_pad_config *cfg) { struct v4l2_subdev_format format; unsigned int pad; for (pad = 0; pad < subdev->entity.num_pads - 1; ++pad) { memset(&format, 0, sizeof(format)); format.pad = pad; format.which = cfg ? V4L2_SUBDEV_FORMAT_TRY : V4L2_SUBDEV_FORMAT_ACTIVE; v4l2_subdev_call(subdev, pad, set_fmt, cfg, &format); } return 0; } /* ----------------------------------------------------------------------------- * Media Operations */ int vsp1_entity_link_setup(struct media_entity *entity, const struct media_pad *local, const struct media_pad *remote, u32 flags) { struct vsp1_entity *source; if (!(local->flags & MEDIA_PAD_FL_SOURCE)) return 0; source = container_of(local->entity, struct vsp1_entity, subdev.entity); if (!source->route) return 0; if (flags & MEDIA_LNK_FL_ENABLED) { if (source->sink) return -EBUSY; source->sink = remote->entity; source->sink_pad = remote->index; } else { source->sink = NULL; source->sink_pad = 0; } return 0; } /* ----------------------------------------------------------------------------- * Initialization */ static const struct vsp1_route vsp1_routes[] = { { VSP1_ENTITY_BRU, 0, VI6_DPR_BRU_ROUTE, { VI6_DPR_NODE_BRU_IN(0), VI6_DPR_NODE_BRU_IN(1), VI6_DPR_NODE_BRU_IN(2), VI6_DPR_NODE_BRU_IN(3), VI6_DPR_NODE_BRU_IN(4) } }, { VSP1_ENTITY_HSI, 0, VI6_DPR_HSI_ROUTE, { VI6_DPR_NODE_HSI, } }, { VSP1_ENTITY_HST, 0, VI6_DPR_HST_ROUTE, { VI6_DPR_NODE_HST, } }, { VSP1_ENTITY_LIF, 0, 0, { VI6_DPR_NODE_LIF, } }, { VSP1_ENTITY_LUT, 0, VI6_DPR_LUT_ROUTE, { VI6_DPR_NODE_LUT, } }, { VSP1_ENTITY_RPF, 0, VI6_DPR_RPF_ROUTE(0), { VI6_DPR_NODE_RPF(0), } }, { VSP1_ENTITY_RPF, 1, VI6_DPR_RPF_ROUTE(1), { VI6_DPR_NODE_RPF(1), } }, { VSP1_ENTITY_RPF, 2, VI6_DPR_RPF_ROUTE(2), { VI6_DPR_NODE_RPF(2), } }, { VSP1_ENTITY_RPF, 3, VI6_DPR_RPF_ROUTE(3), { VI6_DPR_NODE_RPF(3), } }, { VSP1_ENTITY_RPF, 4, VI6_DPR_RPF_ROUTE(4), { VI6_DPR_NODE_RPF(4), } }, { VSP1_ENTITY_SRU, 0, VI6_DPR_SRU_ROUTE, { VI6_DPR_NODE_SRU, } }, { VSP1_ENTITY_UDS, 0, VI6_DPR_UDS_ROUTE(0), { VI6_DPR_NODE_UDS(0), } }, { VSP1_ENTITY_UDS, 1, VI6_DPR_UDS_ROUTE(1), { VI6_DPR_NODE_UDS(1), } }, { VSP1_ENTITY_UDS, 2, VI6_DPR_UDS_ROUTE(2), { VI6_DPR_NODE_UDS(2), } }, { VSP1_ENTITY_WPF, 0, 0, { VI6_DPR_NODE_WPF(0), } }, { VSP1_ENTITY_WPF, 1, 0, { VI6_DPR_NODE_WPF(1), } }, { VSP1_ENTITY_WPF, 2, 0, { VI6_DPR_NODE_WPF(2), } }, { VSP1_ENTITY_WPF, 3, 0, { VI6_DPR_NODE_WPF(3), } }, }; int vsp1_entity_init(struct vsp1_device *vsp1, struct vsp1_entity *entity, const char *name, unsigned int num_pads, const struct v4l2_subdev_ops *ops) { struct v4l2_subdev *subdev; unsigned int i; int ret; for (i = 0; i < ARRAY_SIZE(vsp1_routes); ++i) { if (vsp1_routes[i].type == entity->type && vsp1_routes[i].index == entity->index) { entity->route = &vsp1_routes[i]; break; } } if (i == ARRAY_SIZE(vsp1_routes)) return -EINVAL; entity->vsp1 = vsp1; entity->source_pad = num_pads - 1; /* Allocate formats and pads. */ entity->formats = devm_kzalloc(vsp1->dev, num_pads * sizeof(*entity->formats), GFP_KERNEL); if (entity->formats == NULL) return -ENOMEM; entity->pads = devm_kzalloc(vsp1->dev, num_pads * sizeof(*entity->pads), GFP_KERNEL); if (entity->pads == NULL) return -ENOMEM; /* Initialize pads. */ for (i = 0; i < num_pads - 1; ++i) entity->pads[i].flags = MEDIA_PAD_FL_SINK; entity->pads[num_pads - 1].flags = MEDIA_PAD_FL_SOURCE; /* Initialize the media entity. */ ret = media_entity_pads_init(&entity->subdev.entity, num_pads, entity->pads); if (ret < 0) return ret; /* Initialize the V4L2 subdev. */ subdev = &entity->subdev; v4l2_subdev_init(subdev, ops); subdev->entity.ops = &vsp1->media_ops; subdev->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; snprintf(subdev->name, sizeof(subdev->name), "%s %s", dev_name(vsp1->dev), name); vsp1_entity_init_cfg(subdev, NULL); return 0; } void vsp1_entity_destroy(struct vsp1_entity *entity) { if (entity->ops && entity->ops->destroy) entity->ops->destroy(entity); if (entity->subdev.ctrl_handler) v4l2_ctrl_handler_free(entity->subdev.ctrl_handler); media_entity_cleanup(&entity->subdev.entity); }