/* * 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_entity.h" #include "vsp1_video.h" bool vsp1_entity_is_streaming(struct vsp1_entity *entity) { bool streaming; mutex_lock(&entity->lock); streaming = entity->streaming; mutex_unlock(&entity->lock); return streaming; } int vsp1_entity_set_streaming(struct vsp1_entity *entity, bool streaming) { int ret; mutex_lock(&entity->lock); entity->streaming = streaming; mutex_unlock(&entity->lock); if (!streaming) return 0; if (!entity->subdev.ctrl_handler) return 0; ret = v4l2_ctrl_handler_setup(entity->subdev.ctrl_handler); if (ret < 0) { mutex_lock(&entity->lock); entity->streaming = false; mutex_unlock(&entity->lock); } return ret; } /* ----------------------------------------------------------------------------- * V4L2 Subdevice Operations */ struct v4l2_mbus_framefmt * vsp1_entity_get_pad_format(struct vsp1_entity *entity, struct v4l2_subdev_fh *fh, unsigned int pad, u32 which) { switch (which) { case V4L2_SUBDEV_FORMAT_TRY: return v4l2_subdev_get_try_format(fh, pad); case V4L2_SUBDEV_FORMAT_ACTIVE: return &entity->formats[pad]; default: return NULL; } } /* * vsp1_entity_init_formats - Initialize formats on all pads * @subdev: V4L2 subdevice * @fh: V4L2 subdev file handle * * Initialize all pad formats with default values. If fh is not NULL, try * formats are initialized on the file handle. Otherwise active formats are * initialized on the device. */ void vsp1_entity_init_formats(struct v4l2_subdev *subdev, struct v4l2_subdev_fh *fh) { 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 = fh ? V4L2_SUBDEV_FORMAT_TRY : V4L2_SUBDEV_FORMAT_ACTIVE; v4l2_subdev_call(subdev, pad, set_fmt, fh, &format); } } static int vsp1_entity_open(struct v4l2_subdev *subdev, struct v4l2_subdev_fh *fh) { vsp1_entity_init_formats(subdev, fh); return 0; } const struct v4l2_subdev_internal_ops vsp1_subdev_internal_ops = { .open = vsp1_entity_open, }; /* ----------------------------------------------------------------------------- * Media Operations */ static 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; } const struct media_entity_operations vsp1_media_ops = { .link_setup = vsp1_entity_link_setup, .link_validate = v4l2_subdev_link_validate, }; /* ----------------------------------------------------------------------------- * 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), } }, { 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, unsigned int num_pads) { unsigned int i; 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; mutex_init(&entity->lock); 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. */ return media_entity_init(&entity->subdev.entity, num_pads, entity->pads, 0); } void vsp1_entity_destroy(struct vsp1_entity *entity) { if (entity->video) vsp1_video_cleanup(entity->video); if (entity->subdev.ctrl_handler) v4l2_ctrl_handler_free(entity->subdev.ctrl_handler); media_entity_cleanup(&entity->subdev.entity); mutex_destroy(&entity->lock); }