| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Niklas Söderlund | 7867 | 84.85% | 27 | 54.00% |
| Jacopo Mondi | 748 | 8.07% | 10 | 20.00% |
| Sergei Shtylyov | 486 | 5.24% | 2 | 4.00% |
| Sakari Ailus | 92 | 0.99% | 2 | 4.00% |
| Steve Longerbeam | 25 | 0.27% | 3 | 6.00% |
| Laurent Pinchart | 21 | 0.23% | 1 | 2.00% |
| Fabrizio Castro | 13 | 0.14% | 1 | 2.00% |
| Biju Das | 13 | 0.14% | 1 | 2.00% |
| Kuninori Morimoto | 3 | 0.03% | 1 | 2.00% |
| Hans Verkuil | 2 | 0.02% | 1 | 2.00% |
| Mauro Carvalho Chehab | 2 | 0.02% | 1 | 2.00% |
| Total | 9272 | 50 |
// SPDX-License-Identifier: GPL-2.0+ /* * Driver for Renesas R-Car VIN * * Copyright (C) 2016 Renesas Electronics Corp. * Copyright (C) 2011-2013 Renesas Solutions Corp. * Copyright (C) 2013 Cogent Embedded, Inc., <source@cogentembedded.com> * Copyright (C) 2008 Magnus Damm * * Based on the soc-camera rcar_vin driver */ #include <linux/module.h> #include <linux/of.h> #include <linux/of_device.h> #include <linux/of_graph.h> #include <linux/platform_device.h> #include <linux/pm_runtime.h> #include <linux/slab.h> #include <linux/sys_soc.h> #include <media/v4l2-async.h> #include <media/v4l2-fwnode.h> #include <media/v4l2-mc.h> #include "rcar-vin.h" /* * The companion CSI-2 receiver driver (rcar-csi2) is known * and we know it has one source pad (pad 0) and four sink * pads (pad 1-4). So to translate a pad on the remote * CSI-2 receiver to/from the VIN internal channel number simply * subtract/add one from the pad/channel number. */ #define rvin_group_csi_pad_to_channel(pad) ((pad) - 1) #define rvin_group_csi_channel_to_pad(channel) ((channel) + 1) /* * Not all VINs are created equal, master VINs control the * routing for other VIN's. We can figure out which VIN is * master by looking at a VINs id. */ #define rvin_group_id_to_master(vin) ((vin) < 4 ? 0 : 4) #define v4l2_dev_to_vin(d) container_of(d, struct rvin_dev, v4l2_dev) /* ----------------------------------------------------------------------------- * Media Controller link notification */ /* group lock should be held when calling this function. */ static int rvin_group_entity_to_csi_id(struct rvin_group *group, struct media_entity *entity) { struct v4l2_subdev *sd; unsigned int i; sd = media_entity_to_v4l2_subdev(entity); for (i = 0; i < RVIN_CSI_MAX; i++) if (group->csi[i].subdev == sd) return i; return -ENODEV; } static unsigned int rvin_group_get_mask(struct rvin_dev *vin, enum rvin_csi_id csi_id, unsigned char channel) { const struct rvin_group_route *route; unsigned int mask = 0; for (route = vin->info->routes; route->mask; route++) { if (route->vin == vin->id && route->csi == csi_id && route->channel == channel) { vin_dbg(vin, "Adding route: vin: %d csi: %d channel: %d\n", route->vin, route->csi, route->channel); mask |= route->mask; } } return mask; } /* * Link setup for the links between a VIN and a CSI-2 receiver is a bit * complex. The reason for this is that the register controlling routing * is not present in each VIN instance. There are special VINs which * control routing for themselves and other VINs. There are not many * different possible links combinations that can be enabled at the same * time, therefor all already enabled links which are controlled by a * master VIN need to be taken into account when making the decision * if a new link can be enabled or not. * * 1. Find out which VIN the link the user tries to enable is connected to. * 2. Lookup which master VIN controls the links for this VIN. * 3. Start with a bitmask with all bits set. * 4. For each previously enabled link from the master VIN bitwise AND its * route mask (see documentation for mask in struct rvin_group_route) * with the bitmask. * 5. Bitwise AND the mask for the link the user tries to enable to the bitmask. * 6. If the bitmask is not empty at this point the new link can be enabled * while keeping all previous links enabled. Update the CHSEL value of the * master VIN and inform the user that the link could be enabled. * * Please note that no link can be enabled if any VIN in the group is * currently open. */ static int rvin_group_link_notify(struct media_link *link, u32 flags, unsigned int notification) { struct rvin_group *group = container_of(link->graph_obj.mdev, struct rvin_group, mdev); unsigned int master_id, channel, mask_new, i; unsigned int mask = ~0; struct media_entity *entity; struct video_device *vdev; struct media_pad *csi_pad; struct rvin_dev *vin = NULL; int csi_id, ret; ret = v4l2_pipeline_link_notify(link, flags, notification); if (ret) return ret; /* Only care about link enablement for VIN nodes. */ if (!(flags & MEDIA_LNK_FL_ENABLED) || !is_media_entity_v4l2_video_device(link->sink->entity)) return 0; /* * Don't allow link changes if any entity in the graph is * streaming, modifying the CHSEL register fields can disrupt * running streams. */ media_device_for_each_entity(entity, &group->mdev) if (entity->stream_count) return -EBUSY; mutex_lock(&group->lock); /* Find the master VIN that controls the routes. */ vdev = media_entity_to_video_device(link->sink->entity); vin = container_of(vdev, struct rvin_dev, vdev); master_id = rvin_group_id_to_master(vin->id); if (WARN_ON(!group->vin[master_id])) { ret = -ENODEV; goto out; } /* Build a mask for already enabled links. */ for (i = master_id; i < master_id + 4; i++) { if (!group->vin[i]) continue; /* Get remote CSI-2, if any. */ csi_pad = media_entity_remote_pad( &group->vin[i]->vdev.entity.pads[0]); if (!csi_pad) continue; csi_id = rvin_group_entity_to_csi_id(group, csi_pad->entity); channel = rvin_group_csi_pad_to_channel(csi_pad->index); mask &= rvin_group_get_mask(group->vin[i], csi_id, channel); } /* Add the new link to the existing mask and check if it works. */ csi_id = rvin_group_entity_to_csi_id(group, link->source->entity); if (csi_id == -ENODEV) { struct v4l2_subdev *sd; /* * Make sure the source entity subdevice is registered as * a parallel input of one of the enabled VINs if it is not * one of the CSI-2 subdevices. * * No hardware configuration required for parallel inputs, * we can return here. */ sd = media_entity_to_v4l2_subdev(link->source->entity); for (i = 0; i < RCAR_VIN_NUM; i++) { if (group->vin[i] && group->vin[i]->parallel && group->vin[i]->parallel->subdev == sd) { group->vin[i]->is_csi = false; ret = 0; goto out; } } vin_err(vin, "Subdevice %s not registered to any VIN\n", link->source->entity->name); ret = -ENODEV; goto out; } channel = rvin_group_csi_pad_to_channel(link->source->index); mask_new = mask & rvin_group_get_mask(vin, csi_id, channel); vin_dbg(vin, "Try link change mask: 0x%x new: 0x%x\n", mask, mask_new); if (!mask_new) { ret = -EMLINK; goto out; } /* New valid CHSEL found, set the new value. */ ret = rvin_set_channel_routing(group->vin[master_id], __ffs(mask_new)); if (ret) goto out; vin->is_csi = true; out: mutex_unlock(&group->lock); return ret; } static const struct media_device_ops rvin_media_ops = { .link_notify = rvin_group_link_notify, }; /* ----------------------------------------------------------------------------- * Gen3 CSI2 Group Allocator */ /* FIXME: This should if we find a system that supports more * than one group for the whole system be replaced with a linked * list of groups. And eventually all of this should be replaced * with a global device allocator API. * * But for now this works as on all supported systems there will * be only one group for all instances. */ static DEFINE_MUTEX(rvin_group_lock); static struct rvin_group *rvin_group_data; static void rvin_group_cleanup(struct rvin_group *group) { media_device_unregister(&group->mdev); media_device_cleanup(&group->mdev); mutex_destroy(&group->lock); } static int rvin_group_init(struct rvin_group *group, struct rvin_dev *vin) { struct media_device *mdev = &group->mdev; const struct of_device_id *match; struct device_node *np; int ret; mutex_init(&group->lock); /* Count number of VINs in the system */ group->count = 0; for_each_matching_node(np, vin->dev->driver->of_match_table) if (of_device_is_available(np)) group->count++; vin_dbg(vin, "found %u enabled VIN's in DT", group->count); mdev->dev = vin->dev; mdev->ops = &rvin_media_ops; match = of_match_node(vin->dev->driver->of_match_table, vin->dev->of_node); strscpy(mdev->driver_name, KBUILD_MODNAME, sizeof(mdev->driver_name)); strscpy(mdev->model, match->compatible, sizeof(mdev->model)); snprintf(mdev->bus_info, sizeof(mdev->bus_info), "platform:%s", dev_name(mdev->dev)); media_device_init(mdev); ret = media_device_register(&group->mdev); if (ret) rvin_group_cleanup(group); return ret; } static void rvin_group_release(struct kref *kref) { struct rvin_group *group = container_of(kref, struct rvin_group, refcount); mutex_lock(&rvin_group_lock); rvin_group_data = NULL; rvin_group_cleanup(group); kfree(group); mutex_unlock(&rvin_group_lock); } static int rvin_group_get(struct rvin_dev *vin) { struct rvin_group *group; u32 id; int ret; /* Make sure VIN id is present and sane */ ret = of_property_read_u32(vin->dev->of_node, "renesas,id", &id); if (ret) { vin_err(vin, "%pOF: No renesas,id property found\n", vin->dev->of_node); return -EINVAL; } if (id >= RCAR_VIN_NUM) { vin_err(vin, "%pOF: Invalid renesas,id '%u'\n", vin->dev->of_node, id); return -EINVAL; } /* Join or create a VIN group */ mutex_lock(&rvin_group_lock); if (rvin_group_data) { group = rvin_group_data; kref_get(&group->refcount); } else { group = kzalloc(sizeof(*group), GFP_KERNEL); if (!group) { ret = -ENOMEM; goto err_group; } ret = rvin_group_init(group, vin); if (ret) { kfree(group); vin_err(vin, "Failed to initialize group\n"); goto err_group; } kref_init(&group->refcount); rvin_group_data = group; } mutex_unlock(&rvin_group_lock); /* Add VIN to group */ mutex_lock(&group->lock); if (group->vin[id]) { vin_err(vin, "Duplicate renesas,id property value %u\n", id); mutex_unlock(&group->lock); kref_put(&group->refcount, rvin_group_release); return -EINVAL; } group->vin[id] = vin; vin->id = id; vin->group = group; vin->v4l2_dev.mdev = &group->mdev; mutex_unlock(&group->lock); return 0; err_group: mutex_unlock(&rvin_group_lock); return ret; } static void rvin_group_put(struct rvin_dev *vin) { struct rvin_group *group = vin->group; mutex_lock(&group->lock); vin->group = NULL; vin->v4l2_dev.mdev = NULL; if (WARN_ON(group->vin[vin->id] != vin)) goto out; group->vin[vin->id] = NULL; out: mutex_unlock(&group->lock); kref_put(&group->refcount, rvin_group_release); } /* ----------------------------------------------------------------------------- * Async notifier */ static int rvin_find_pad(struct v4l2_subdev *sd, int direction) { unsigned int pad; if (sd->entity.num_pads <= 1) return 0; for (pad = 0; pad < sd->entity.num_pads; pad++) if (sd->entity.pads[pad].flags & direction) return pad; return -EINVAL; } /* ----------------------------------------------------------------------------- * Parallel async notifier */ /* The vin lock should be held when calling the subdevice attach and detach */ static int rvin_parallel_subdevice_attach(struct rvin_dev *vin, struct v4l2_subdev *subdev) { struct v4l2_subdev_mbus_code_enum code = { .which = V4L2_SUBDEV_FORMAT_ACTIVE, }; int ret; /* Find source and sink pad of remote subdevice */ ret = rvin_find_pad(subdev, MEDIA_PAD_FL_SOURCE); if (ret < 0) return ret; vin->parallel->source_pad = ret; ret = rvin_find_pad(subdev, MEDIA_PAD_FL_SINK); vin->parallel->sink_pad = ret < 0 ? 0 : ret; if (vin->info->use_mc) { vin->parallel->subdev = subdev; return 0; } /* Find compatible subdevices mbus format */ vin->mbus_code = 0; code.index = 0; code.pad = vin->parallel->source_pad; while (!vin->mbus_code && !v4l2_subdev_call(subdev, pad, enum_mbus_code, NULL, &code)) { code.index++; switch (code.code) { case MEDIA_BUS_FMT_YUYV8_1X16: case MEDIA_BUS_FMT_UYVY8_1X16: case MEDIA_BUS_FMT_UYVY8_2X8: case MEDIA_BUS_FMT_UYVY10_2X10: case MEDIA_BUS_FMT_RGB888_1X24: vin->mbus_code = code.code; vin_dbg(vin, "Found media bus format for %s: %d\n", subdev->name, vin->mbus_code); break; default: break; } } if (!vin->mbus_code) { vin_err(vin, "Unsupported media bus format for %s\n", subdev->name); return -EINVAL; } /* Read tvnorms */ ret = v4l2_subdev_call(subdev, video, g_tvnorms, &vin->vdev.tvnorms); if (ret < 0 && ret != -ENOIOCTLCMD && ret != -ENODEV) return ret; /* Read standard */ vin->std = V4L2_STD_UNKNOWN; ret = v4l2_subdev_call(subdev, video, g_std, &vin->std); if (ret < 0 && ret != -ENOIOCTLCMD) return ret; /* Add the controls */ ret = v4l2_ctrl_handler_init(&vin->ctrl_handler, 16); if (ret < 0) return ret; ret = v4l2_ctrl_add_handler(&vin->ctrl_handler, subdev->ctrl_handler, NULL, true); if (ret < 0) { v4l2_ctrl_handler_free(&vin->ctrl_handler); return ret; } vin->vdev.ctrl_handler = &vin->ctrl_handler; vin->parallel->subdev = subdev; return 0; } static void rvin_parallel_subdevice_detach(struct rvin_dev *vin) { rvin_v4l2_unregister(vin); vin->parallel->subdev = NULL; if (!vin->info->use_mc) { v4l2_ctrl_handler_free(&vin->ctrl_handler); vin->vdev.ctrl_handler = NULL; } } static int rvin_parallel_notify_complete(struct v4l2_async_notifier *notifier) { struct rvin_dev *vin = v4l2_dev_to_vin(notifier->v4l2_dev); struct media_entity *source; struct media_entity *sink; int ret; ret = v4l2_device_register_subdev_nodes(&vin->v4l2_dev); if (ret < 0) { vin_err(vin, "Failed to register subdev nodes\n"); return ret; } if (!video_is_registered(&vin->vdev)) { ret = rvin_v4l2_register(vin); if (ret < 0) return ret; } if (!vin->info->use_mc) return 0; /* If we're running with media-controller, link the subdevs. */ source = &vin->parallel->subdev->entity; sink = &vin->vdev.entity; ret = media_create_pad_link(source, vin->parallel->source_pad, sink, vin->parallel->sink_pad, 0); if (ret) vin_err(vin, "Error adding link from %s to %s: %d\n", source->name, sink->name, ret); return ret; } static void rvin_parallel_notify_unbind(struct v4l2_async_notifier *notifier, struct v4l2_subdev *subdev, struct v4l2_async_subdev *asd) { struct rvin_dev *vin = v4l2_dev_to_vin(notifier->v4l2_dev); vin_dbg(vin, "unbind parallel subdev %s\n", subdev->name); mutex_lock(&vin->lock); rvin_parallel_subdevice_detach(vin); mutex_unlock(&vin->lock); } static int rvin_parallel_notify_bound(struct v4l2_async_notifier *notifier, struct v4l2_subdev *subdev, struct v4l2_async_subdev *asd) { struct rvin_dev *vin = v4l2_dev_to_vin(notifier->v4l2_dev); int ret; mutex_lock(&vin->lock); ret = rvin_parallel_subdevice_attach(vin, subdev); mutex_unlock(&vin->lock); if (ret) return ret; v4l2_set_subdev_hostdata(subdev, vin); vin_dbg(vin, "bound subdev %s source pad: %u sink pad: %u\n", subdev->name, vin->parallel->source_pad, vin->parallel->sink_pad); return 0; } static const struct v4l2_async_notifier_operations rvin_parallel_notify_ops = { .bound = rvin_parallel_notify_bound, .unbind = rvin_parallel_notify_unbind, .complete = rvin_parallel_notify_complete, }; static int rvin_parallel_parse_v4l2(struct device *dev, struct v4l2_fwnode_endpoint *vep, struct v4l2_async_subdev *asd) { struct rvin_dev *vin = dev_get_drvdata(dev); struct rvin_parallel_entity *rvpe = container_of(asd, struct rvin_parallel_entity, asd); if (vep->base.port || vep->base.id) return -ENOTCONN; vin->parallel = rvpe; vin->parallel->mbus_type = vep->bus_type; switch (vin->parallel->mbus_type) { case V4L2_MBUS_PARALLEL: vin_dbg(vin, "Found PARALLEL media bus\n"); vin->parallel->mbus_flags = vep->bus.parallel.flags; break; case V4L2_MBUS_BT656: vin_dbg(vin, "Found BT656 media bus\n"); vin->parallel->mbus_flags = 0; break; default: vin_err(vin, "Unknown media bus type\n"); return -EINVAL; } return 0; } static int rvin_parallel_init(struct rvin_dev *vin) { int ret; v4l2_async_notifier_init(&vin->notifier); ret = v4l2_async_notifier_parse_fwnode_endpoints_by_port( vin->dev, &vin->notifier, sizeof(struct rvin_parallel_entity), 0, rvin_parallel_parse_v4l2); if (ret) return ret; /* If using mc, it's fine not to have any input registered. */ if (!vin->parallel) return vin->info->use_mc ? 0 : -ENODEV; vin_dbg(vin, "Found parallel subdevice %pOF\n", to_of_node(vin->parallel->asd.match.fwnode)); vin->notifier.ops = &rvin_parallel_notify_ops; ret = v4l2_async_notifier_register(&vin->v4l2_dev, &vin->notifier); if (ret < 0) { vin_err(vin, "Notifier registration failed\n"); v4l2_async_notifier_cleanup(&vin->group->notifier); return ret; } return 0; } /* ----------------------------------------------------------------------------- * Group async notifier */ static int rvin_group_notify_complete(struct v4l2_async_notifier *notifier) { struct rvin_dev *vin = v4l2_dev_to_vin(notifier->v4l2_dev); const struct rvin_group_route *route; unsigned int i; int ret; ret = v4l2_device_register_subdev_nodes(&vin->v4l2_dev); if (ret) { vin_err(vin, "Failed to register subdev nodes\n"); return ret; } /* Register all video nodes for the group. */ for (i = 0; i < RCAR_VIN_NUM; i++) { if (vin->group->vin[i] && !video_is_registered(&vin->group->vin[i]->vdev)) { ret = rvin_v4l2_register(vin->group->vin[i]); if (ret) return ret; } } /* Create all media device links between VINs and CSI-2's. */ mutex_lock(&vin->group->lock); for (route = vin->info->routes; route->mask; route++) { struct media_pad *source_pad, *sink_pad; struct media_entity *source, *sink; unsigned int source_idx; /* Check that VIN is part of the group. */ if (!vin->group->vin[route->vin]) continue; /* Check that VIN' master is part of the group. */ if (!vin->group->vin[rvin_group_id_to_master(route->vin)]) continue; /* Check that CSI-2 is part of the group. */ if (!vin->group->csi[route->csi].subdev) continue; source = &vin->group->csi[route->csi].subdev->entity; source_idx = rvin_group_csi_channel_to_pad(route->channel); source_pad = &source->pads[source_idx]; sink = &vin->group->vin[route->vin]->vdev.entity; sink_pad = &sink->pads[0]; /* Skip if link already exists. */ if (media_entity_find_link(source_pad, sink_pad)) continue; ret = media_create_pad_link(source, source_idx, sink, 0, 0); if (ret) { vin_err(vin, "Error adding link from %s to %s\n", source->name, sink->name); break; } } mutex_unlock(&vin->group->lock); return ret; } static void rvin_group_notify_unbind(struct v4l2_async_notifier *notifier, struct v4l2_subdev *subdev, struct v4l2_async_subdev *asd) { struct rvin_dev *vin = v4l2_dev_to_vin(notifier->v4l2_dev); unsigned int i; for (i = 0; i < RCAR_VIN_NUM; i++) if (vin->group->vin[i]) rvin_v4l2_unregister(vin->group->vin[i]); mutex_lock(&vin->group->lock); for (i = 0; i < RVIN_CSI_MAX; i++) { if (vin->group->csi[i].fwnode != asd->match.fwnode) continue; vin->group->csi[i].subdev = NULL; vin_dbg(vin, "Unbind CSI-2 %s from slot %u\n", subdev->name, i); break; } mutex_unlock(&vin->group->lock); } static int rvin_group_notify_bound(struct v4l2_async_notifier *notifier, struct v4l2_subdev *subdev, struct v4l2_async_subdev *asd) { struct rvin_dev *vin = v4l2_dev_to_vin(notifier->v4l2_dev); unsigned int i; mutex_lock(&vin->group->lock); for (i = 0; i < RVIN_CSI_MAX; i++) { if (vin->group->csi[i].fwnode != asd->match.fwnode) continue; vin->group->csi[i].subdev = subdev; vin_dbg(vin, "Bound CSI-2 %s to slot %u\n", subdev->name, i); break; } mutex_unlock(&vin->group->lock); return 0; } static const struct v4l2_async_notifier_operations rvin_group_notify_ops = { .bound = rvin_group_notify_bound, .unbind = rvin_group_notify_unbind, .complete = rvin_group_notify_complete, }; static int rvin_mc_parse_of_endpoint(struct device *dev, struct v4l2_fwnode_endpoint *vep, struct v4l2_async_subdev *asd) { struct rvin_dev *vin = dev_get_drvdata(dev); int ret = 0; if (vep->base.port != 1 || vep->base.id >= RVIN_CSI_MAX) return -EINVAL; if (!of_device_is_available(to_of_node(asd->match.fwnode))) { vin_dbg(vin, "OF device %pOF disabled, ignoring\n", to_of_node(asd->match.fwnode)); return -ENOTCONN; } mutex_lock(&vin->group->lock); if (vin->group->csi[vep->base.id].fwnode) { vin_dbg(vin, "OF device %pOF already handled\n", to_of_node(asd->match.fwnode)); ret = -ENOTCONN; goto out; } vin->group->csi[vep->base.id].fwnode = asd->match.fwnode; vin_dbg(vin, "Add group OF device %pOF to slot %u\n", to_of_node(asd->match.fwnode), vep->base.id); out: mutex_unlock(&vin->group->lock); return ret; } static int rvin_mc_parse_of_graph(struct rvin_dev *vin) { unsigned int count = 0, vin_mask = 0; unsigned int i; int ret; mutex_lock(&vin->group->lock); /* If not all VIN's are registered don't register the notifier. */ for (i = 0; i < RCAR_VIN_NUM; i++) { if (vin->group->vin[i]) { count++; vin_mask |= BIT(i); } } if (vin->group->count != count) { mutex_unlock(&vin->group->lock); return 0; } mutex_unlock(&vin->group->lock); v4l2_async_notifier_init(&vin->group->notifier); /* * Have all VIN's look for CSI-2 subdevices. Some subdevices will * overlap but the parser function can handle it, so each subdevice * will only be registered once with the group notifier. */ for (i = 0; i < RCAR_VIN_NUM; i++) { if (!(vin_mask & BIT(i))) continue; ret = v4l2_async_notifier_parse_fwnode_endpoints_by_port( vin->group->vin[i]->dev, &vin->group->notifier, sizeof(struct v4l2_async_subdev), 1, rvin_mc_parse_of_endpoint); if (ret) return ret; } if (list_empty(&vin->group->notifier.asd_list)) return 0; vin->group->notifier.ops = &rvin_group_notify_ops; ret = v4l2_async_notifier_register(&vin->v4l2_dev, &vin->group->notifier); if (ret < 0) { vin_err(vin, "Notifier registration failed\n"); v4l2_async_notifier_cleanup(&vin->group->notifier); return ret; } return 0; } static int rvin_mc_init(struct rvin_dev *vin) { int ret; vin->pad.flags = MEDIA_PAD_FL_SINK; ret = media_entity_pads_init(&vin->vdev.entity, 1, &vin->pad); if (ret) return ret; ret = rvin_group_get(vin); if (ret) return ret; ret = rvin_mc_parse_of_graph(vin); if (ret) rvin_group_put(vin); return ret; } /* ----------------------------------------------------------------------------- * Platform Device Driver */ static const struct rvin_info rcar_info_h1 = { .model = RCAR_H1, .use_mc = false, .max_width = 2048, .max_height = 2048, }; static const struct rvin_info rcar_info_m1 = { .model = RCAR_M1, .use_mc = false, .max_width = 2048, .max_height = 2048, }; static const struct rvin_info rcar_info_gen2 = { .model = RCAR_GEN2, .use_mc = false, .max_width = 2048, .max_height = 2048, }; static const struct rvin_group_route rcar_info_r8a7795_routes[] = { { .csi = RVIN_CSI40, .channel = 0, .vin = 0, .mask = BIT(0) | BIT(3) }, { .csi = RVIN_CSI20, .channel = 0, .vin = 0, .mask = BIT(1) | BIT(4) }, { .csi = RVIN_CSI40, .channel = 1, .vin = 0, .mask = BIT(2) }, { .csi = RVIN_CSI20, .channel = 0, .vin = 1, .mask = BIT(0) }, { .csi = RVIN_CSI40, .channel = 1, .vin = 1, .mask = BIT(1) | BIT(3) }, { .csi = RVIN_CSI40, .channel = 0, .vin = 1, .mask = BIT(2) }, { .csi = RVIN_CSI20, .channel = 1, .vin = 1, .mask = BIT(4) }, { .csi = RVIN_CSI20, .channel = 1, .vin = 2, .mask = BIT(0) }, { .csi = RVIN_CSI40, .channel = 0, .vin = 2, .mask = BIT(1) }, { .csi = RVIN_CSI20, .channel = 0, .vin = 2, .mask = BIT(2) }, { .csi = RVIN_CSI40, .channel = 2, .vin = 2, .mask = BIT(3) }, { .csi = RVIN_CSI20, .channel = 2, .vin = 2, .mask = BIT(4) }, { .csi = RVIN_CSI40, .channel = 1, .vin = 3, .mask = BIT(0) }, { .csi = RVIN_CSI20, .channel = 1, .vin = 3, .mask = BIT(1) | BIT(2) }, { .csi = RVIN_CSI40, .channel = 3, .vin = 3, .mask = BIT(3) }, { .csi = RVIN_CSI20, .channel = 3, .vin = 3, .mask = BIT(4) }, { .csi = RVIN_CSI41, .channel = 0, .vin = 4, .mask = BIT(0) | BIT(3) }, { .csi = RVIN_CSI20, .channel = 0, .vin = 4, .mask = BIT(1) | BIT(4) }, { .csi = RVIN_CSI41, .channel = 1, .vin = 4, .mask = BIT(2) }, { .csi = RVIN_CSI20, .channel = 0, .vin = 5, .mask = BIT(0) }, { .csi = RVIN_CSI41, .channel = 1, .vin = 5, .mask = BIT(1) | BIT(3) }, { .csi = RVIN_CSI41, .channel = 0, .vin = 5, .mask = BIT(2) }, { .csi = RVIN_CSI20, .channel = 1, .vin = 5, .mask = BIT(4) }, { .csi = RVIN_CSI20, .channel = 1, .vin = 6, .mask = BIT(0) }, { .csi = RVIN_CSI41, .channel = 0, .vin = 6, .mask = BIT(1) }, { .csi = RVIN_CSI20, .channel = 0, .vin = 6, .mask = BIT(2) }, { .csi = RVIN_CSI41, .channel = 2, .vin = 6, .mask = BIT(3) }, { .csi = RVIN_CSI20, .channel = 2, .vin = 6, .mask = BIT(4) }, { .csi = RVIN_CSI41, .channel = 1, .vin = 7, .mask = BIT(0) }, { .csi = RVIN_CSI20, .channel = 1, .vin = 7, .mask = BIT(1) | BIT(2) }, { .csi = RVIN_CSI41, .channel = 3, .vin = 7, .mask = BIT(3) }, { .csi = RVIN_CSI20, .channel = 3, .vin = 7, .mask = BIT(4) }, { /* Sentinel */ } }; static const struct rvin_info rcar_info_r8a7795 = { .model = RCAR_GEN3, .use_mc = true, .max_width = 4096, .max_height = 4096, .routes = rcar_info_r8a7795_routes, }; static const struct rvin_group_route rcar_info_r8a7795es1_routes[] = { { .csi = RVIN_CSI40, .channel = 0, .vin = 0, .mask = BIT(0) | BIT(3) }, { .csi = RVIN_CSI20, .channel = 0, .vin = 0, .mask = BIT(1) | BIT(4) }, { .csi = RVIN_CSI21, .channel = 0, .vin = 0, .mask = BIT(2) | BIT(5) }, { .csi = RVIN_CSI20, .channel = 0, .vin = 1, .mask = BIT(0) }, { .csi = RVIN_CSI21, .channel = 0, .vin = 1, .mask = BIT(1) }, { .csi = RVIN_CSI40, .channel = 0, .vin = 1, .mask = BIT(2) }, { .csi = RVIN_CSI40, .channel = 1, .vin = 1, .mask = BIT(3) }, { .csi = RVIN_CSI20, .channel = 1, .vin = 1, .mask = BIT(4) }, { .csi = RVIN_CSI21, .channel = 1, .vin = 1, .mask = BIT(5) }, { .csi = RVIN_CSI21, .channel = 0, .vin = 2, .mask = BIT(0) }, { .csi = RVIN_CSI40, .channel = 0, .vin = 2, .mask = BIT(1) }, { .csi = RVIN_CSI20, .channel = 0, .vin = 2, .mask = BIT(2) }, { .csi = RVIN_CSI40, .channel = 2, .vin = 2, .mask = BIT(3) }, { .csi = RVIN_CSI20, .channel = 2, .vin = 2, .mask = BIT(4) }, { .csi = RVIN_CSI21, .channel = 2, .vin = 2, .mask = BIT(5) }, { .csi = RVIN_CSI40, .channel = 1, .vin = 3, .mask = BIT(0) }, { .csi = RVIN_CSI20, .channel = 1, .vin = 3, .mask = BIT(1) }, { .csi = RVIN_CSI21, .channel = 1, .vin = 3, .mask = BIT(2) }, { .csi = RVIN_CSI40, .channel = 3, .vin = 3, .mask = BIT(3) }, { .csi = RVIN_CSI20, .channel = 3, .vin = 3, .mask = BIT(4) }, { .csi = RVIN_CSI21, .channel = 3, .vin = 3, .mask = BIT(5) }, { .csi = RVIN_CSI41, .channel = 0, .vin = 4, .mask = BIT(0) | BIT(3) }, { .csi = RVIN_CSI20, .channel = 0, .vin = 4, .mask = BIT(1) | BIT(4) }, { .csi = RVIN_CSI21, .channel = 0, .vin = 4, .mask = BIT(2) | BIT(5) }, { .csi = RVIN_CSI20, .channel = 0, .vin = 5, .mask = BIT(0) }, { .csi = RVIN_CSI21, .channel = 0, .vin = 5, .mask = BIT(1) }, { .csi = RVIN_CSI41, .channel = 0, .vin = 5, .mask = BIT(2) }, { .csi = RVIN_CSI41, .channel = 1, .vin = 5, .mask = BIT(3) }, { .csi = RVIN_CSI20, .channel = 1, .vin = 5, .mask = BIT(4) }, { .csi = RVIN_CSI21, .channel = 1, .vin = 5, .mask = BIT(5) }, { .csi = RVIN_CSI21, .channel = 0, .vin = 6, .mask = BIT(0) }, { .csi = RVIN_CSI41, .channel = 0, .vin = 6, .mask = BIT(1) }, { .csi = RVIN_CSI20, .channel = 0, .vin = 6, .mask = BIT(2) }, { .csi = RVIN_CSI41, .channel = 2, .vin = 6, .mask = BIT(3) }, { .csi = RVIN_CSI20, .channel = 2, .vin = 6, .mask = BIT(4) }, { .csi = RVIN_CSI21, .channel = 2, .vin = 6, .mask = BIT(5) }, { .csi = RVIN_CSI41, .channel = 1, .vin = 7, .mask = BIT(0) }, { .csi = RVIN_CSI20, .channel = 1, .vin = 7, .mask = BIT(1) }, { .csi = RVIN_CSI21, .channel = 1, .vin = 7, .mask = BIT(2) }, { .csi = RVIN_CSI41, .channel = 3, .vin = 7, .mask = BIT(3) }, { .csi = RVIN_CSI20, .channel = 3, .vin = 7, .mask = BIT(4) }, { .csi = RVIN_CSI21, .channel = 3, .vin = 7, .mask = BIT(5) }, { /* Sentinel */ } }; static const struct rvin_info rcar_info_r8a7795es1 = { .model = RCAR_GEN3, .use_mc = true, .max_width = 4096, .max_height = 4096, .routes = rcar_info_r8a7795es1_routes, }; static const struct rvin_group_route rcar_info_r8a7796_routes[] = { { .csi = RVIN_CSI40, .channel = 0, .vin = 0, .mask = BIT(0) | BIT(3) }, { .csi = RVIN_CSI20, .channel = 0, .vin = 0, .mask = BIT(1) | BIT(4) }, { .csi = RVIN_CSI20, .channel = 0, .vin = 1, .mask = BIT(0) }, { .csi = RVIN_CSI40, .channel = 0, .vin = 1, .mask = BIT(2) }, { .csi = RVIN_CSI40, .channel = 1, .vin = 1, .mask = BIT(3) }, { .csi = RVIN_CSI20, .channel = 1, .vin = 1, .mask = BIT(4) }, { .csi = RVIN_CSI40, .channel = 0, .vin = 2, .mask = BIT(1) }, { .csi = RVIN_CSI20, .channel = 0, .vin = 2, .mask = BIT(2) }, { .csi = RVIN_CSI40, .channel = 2, .vin = 2, .mask = BIT(3) }, { .csi = RVIN_CSI20, .channel = 2, .vin = 2, .mask = BIT(4) }, { .csi = RVIN_CSI40, .channel = 1, .vin = 3, .mask = BIT(0) }, { .csi = RVIN_CSI20, .channel = 1, .vin = 3, .mask = BIT(1) }, { .csi = RVIN_CSI40, .channel = 3, .vin = 3, .mask = BIT(3) }, { .csi = RVIN_CSI20, .channel = 3, .vin = 3, .mask = BIT(4) }, { .csi = RVIN_CSI40, .channel = 0, .vin = 4, .mask = BIT(0) | BIT(3) }, { .csi = RVIN_CSI20, .channel = 0, .vin = 4, .mask = BIT(1) | BIT(4) }, { .csi = RVIN_CSI20, .channel = 0, .vin = 5, .mask = BIT(0) }, { .csi = RVIN_CSI40, .channel = 0, .vin = 5, .mask = BIT(2) }, { .csi = RVIN_CSI40, .channel = 1, .vin = 5, .mask = BIT(3) }, { .csi = RVIN_CSI20, .channel = 1, .vin = 5, .mask = BIT(4) }, { .csi = RVIN_CSI40, .channel = 0, .vin = 6, .mask = BIT(1) }, { .csi = RVIN_CSI20, .channel = 0, .vin = 6, .mask = BIT(2) }, { .csi = RVIN_CSI40, .channel = 2, .vin = 6, .mask = BIT(3) }, { .csi = RVIN_CSI20, .channel = 2, .vin = 6, .mask = BIT(4) }, { .csi = RVIN_CSI40, .channel = 1, .vin = 7, .mask = BIT(0) }, { .csi = RVIN_CSI20, .channel = 1, .vin = 7, .mask = BIT(1) }, { .csi = RVIN_CSI40, .channel = 3, .vin = 7, .mask = BIT(3) }, { .csi = RVIN_CSI20, .channel = 3, .vin = 7, .mask = BIT(4) }, { /* Sentinel */ } }; static const struct rvin_info rcar_info_r8a7796 = { .model = RCAR_GEN3, .use_mc = true, .max_width = 4096, .max_height = 4096, .routes = rcar_info_r8a7796_routes, }; static const struct rvin_group_route rcar_info_r8a77965_routes[] = { { .csi = RVIN_CSI40, .channel = 0, .vin = 0, .mask = BIT(0) | BIT(3) }, { .csi = RVIN_CSI20, .channel = 0, .vin = 0, .mask = BIT(1) | BIT(4) }, { .csi = RVIN_CSI40, .channel = 1, .vin = 0, .mask = BIT(2) }, { .csi = RVIN_CSI20, .channel = 0, .vin = 1, .mask = BIT(0) }, { .csi = RVIN_CSI40, .channel = 1, .vin = 1, .mask = BIT(1) | BIT(3) }, { .csi = RVIN_CSI40, .channel = 0, .vin = 1, .mask = BIT(2) }, { .csi = RVIN_CSI20, .channel = 1, .vin = 1, .mask = BIT(4) }, { .csi = RVIN_CSI20, .channel = 1, .vin = 2, .mask = BIT(0) }, { .csi = RVIN_CSI40, .channel = 0, .vin = 2, .mask = BIT(1) }, { .csi = RVIN_CSI20, .channel = 0, .vin = 2, .mask = BIT(2) }, { .csi = RVIN_CSI40, .channel = 2, .vin = 2, .mask = BIT(3) }, { .csi = RVIN_CSI20, .channel = 2, .vin = 2, .mask = BIT(4) }, { .csi = RVIN_CSI40, .channel = 1, .vin = 3, .mask = BIT(0) }, { .csi = RVIN_CSI20, .channel = 1, .vin = 3, .mask = BIT(1) | BIT(2) }, { .csi = RVIN_CSI40, .channel = 3, .vin = 3, .mask = BIT(3) }, { .csi = RVIN_CSI20, .channel = 3, .vin = 3, .mask = BIT(4) }, { .csi = RVIN_CSI40, .channel = 0, .vin = 4, .mask = BIT(0) | BIT(3) }, { .csi = RVIN_CSI20, .channel = 0, .vin = 4, .mask = BIT(1) | BIT(4) }, { .csi = RVIN_CSI40, .channel = 1, .vin = 4, .mask = BIT(2) }, { .csi = RVIN_CSI20, .channel = 0, .vin = 5, .mask = BIT(0) }, { .csi = RVIN_CSI40, .channel = 1, .vin = 5, .mask = BIT(1) | BIT(3) }, { .csi = RVIN_CSI40, .channel = 0, .vin = 5, .mask = BIT(2) }, { .csi = RVIN_CSI20, .channel = 1, .vin = 5, .mask = BIT(4) }, { .csi = RVIN_CSI20, .channel = 1, .vin = 6, .mask = BIT(0) }, { .csi = RVIN_CSI40, .channel = 0, .vin = 6, .mask = BIT(1) }, { .csi = RVIN_CSI20, .channel = 0, .vin = 6, .mask = BIT(2) }, { .csi = RVIN_CSI40, .channel = 2, .vin = 6, .mask = BIT(3) }, { .csi = RVIN_CSI20, .channel = 2, .vin = 6, .mask = BIT(4) }, { .csi = RVIN_CSI40, .channel = 1, .vin = 7, .mask = BIT(0) }, { .csi = RVIN_CSI20, .channel = 1, .vin = 7, .mask = BIT(1) | BIT(2) }, { .csi = RVIN_CSI40, .channel = 3, .vin = 7, .mask = BIT(3) }, { .csi = RVIN_CSI20, .channel = 3, .vin = 7, .mask = BIT(4) }, { /* Sentinel */ } }; static const struct rvin_info rcar_info_r8a77965 = { .model = RCAR_GEN3, .use_mc = true, .max_width = 4096, .max_height = 4096, .routes = rcar_info_r8a77965_routes, }; static const struct rvin_group_route rcar_info_r8a77970_routes[] = { { .csi = RVIN_CSI40, .channel = 0, .vin = 0, .mask = BIT(0) | BIT(3) }, { .csi = RVIN_CSI40, .channel = 0, .vin = 1, .mask = BIT(2) }, { .csi = RVIN_CSI40, .channel = 1, .vin = 1, .mask = BIT(3) }, { .csi = RVIN_CSI40, .channel = 0, .vin = 2, .mask = BIT(1) }, { .csi = RVIN_CSI40, .channel = 2, .vin = 2, .mask = BIT(3) }, { .csi = RVIN_CSI40, .channel = 1, .vin = 3, .mask = BIT(0) }, { .csi = RVIN_CSI40, .channel = 3, .vin = 3, .mask = BIT(3) }, { /* Sentinel */ } }; static const struct rvin_info rcar_info_r8a77970 = { .model = RCAR_GEN3, .use_mc = true, .max_width = 4096, .max_height = 4096, .routes = rcar_info_r8a77970_routes, }; static const struct rvin_group_route rcar_info_r8a77980_routes[] = { { .csi = RVIN_CSI40, .channel = 0, .vin = 0, .mask = BIT(0) | BIT(3) }, { .csi = RVIN_CSI40, .channel = 1, .vin = 0, .mask = BIT(2) }, { .csi = RVIN_CSI40, .channel = 0, .vin = 1, .mask = BIT(2) }, { .csi = RVIN_CSI40, .channel = 1, .vin = 1, .mask = BIT(1) | BIT(3) }, { .csi = RVIN_CSI40, .channel = 0, .vin = 2, .mask = BIT(1) }, { .csi = RVIN_CSI40, .channel = 2, .vin = 2, .mask = BIT(3) }, { .csi = RVIN_CSI40, .channel = 1, .vin = 3, .mask = BIT(0) }, { .csi = RVIN_CSI40, .channel = 3, .vin = 3, .mask = BIT(3) }, { .csi = RVIN_CSI41, .channel = 0, .vin = 4, .mask = BIT(0) | BIT(3) }, { .csi = RVIN_CSI41, .channel = 1, .vin = 4, .mask = BIT(2) }, { .csi = RVIN_CSI41, .channel = 0, .vin = 5, .mask = BIT(2) }, { .csi = RVIN_CSI41, .channel = 1, .vin = 5, .mask = BIT(1) | BIT(3) }, { .csi = RVIN_CSI41, .channel = 0, .vin = 6, .mask = BIT(1) }, { .csi = RVIN_CSI41, .channel = 2, .vin = 6, .mask = BIT(3) }, { .csi = RVIN_CSI41, .channel = 1, .vin = 7, .mask = BIT(0) }, { .csi = RVIN_CSI41, .channel = 3, .vin = 7, .mask = BIT(3) }, { /* Sentinel */ } }; static const struct rvin_info rcar_info_r8a77980 = { .model = RCAR_GEN3, .use_mc = true, .max_width = 4096, .max_height = 4096, .routes = rcar_info_r8a77980_routes, }; static const struct rvin_group_route rcar_info_r8a77990_routes[] = { { .csi = RVIN_CSI40, .channel = 0, .vin = 4, .mask = BIT(0) | BIT(3) }, { .csi = RVIN_CSI40, .channel = 0, .vin = 5, .mask = BIT(2) }, { .csi = RVIN_CSI40, .channel = 1, .vin = 4, .mask = BIT(2) }, { .csi = RVIN_CSI40, .channel = 1, .vin = 5, .mask = BIT(1) | BIT(3) }, { /* Sentinel */ } }; static const struct rvin_info rcar_info_r8a77990 = { .model = RCAR_GEN3, .use_mc = true, .max_width = 4096, .max_height = 4096, .routes = rcar_info_r8a77990_routes, }; static const struct rvin_group_route rcar_info_r8a77995_routes[] = { { /* Sentinel */ } }; static const struct rvin_info rcar_info_r8a77995 = { .model = RCAR_GEN3, .use_mc = true, .max_width = 4096, .max_height = 4096, .routes = rcar_info_r8a77995_routes, }; static const struct of_device_id rvin_of_id_table[] = { { .compatible = "renesas,vin-r8a774a1", .data = &rcar_info_r8a7796, }, { .compatible = "renesas,vin-r8a774c0", .data = &rcar_info_r8a77990, }, { .compatible = "renesas,vin-r8a7778", .data = &rcar_info_m1, }, { .compatible = "renesas,vin-r8a7779", .data = &rcar_info_h1, }, { .compatible = "renesas,vin-r8a7790", .data = &rcar_info_gen2, }, { .compatible = "renesas,vin-r8a7791", .data = &rcar_info_gen2, }, { .compatible = "renesas,vin-r8a7793", .data = &rcar_info_gen2, }, { .compatible = "renesas,vin-r8a7794", .data = &rcar_info_gen2, }, { .compatible = "renesas,rcar-gen2-vin", .data = &rcar_info_gen2, }, { .compatible = "renesas,vin-r8a7795", .data = &rcar_info_r8a7795, }, { .compatible = "renesas,vin-r8a7796", .data = &rcar_info_r8a7796, }, { .compatible = "renesas,vin-r8a77965", .data = &rcar_info_r8a77965, }, { .compatible = "renesas,vin-r8a77970", .data = &rcar_info_r8a77970, }, { .compatible = "renesas,vin-r8a77980", .data = &rcar_info_r8a77980, }, { .compatible = "renesas,vin-r8a77990", .data = &rcar_info_r8a77990, }, { .compatible = "renesas,vin-r8a77995", .data = &rcar_info_r8a77995, }, { /* Sentinel */ }, }; MODULE_DEVICE_TABLE(of, rvin_of_id_table); static const struct soc_device_attribute r8a7795es1[] = { { .soc_id = "r8a7795", .revision = "ES1.*", .data = &rcar_info_r8a7795es1, }, { /* Sentinel */ } }; static int rcar_vin_probe(struct platform_device *pdev) { const struct soc_device_attribute *attr; struct rvin_dev *vin; struct resource *mem; int irq, ret; vin = devm_kzalloc(&pdev->dev, sizeof(*vin), GFP_KERNEL); if (!vin) return -ENOMEM; vin->dev = &pdev->dev; vin->info = of_device_get_match_data(&pdev->dev); /* * Special care is needed on r8a7795 ES1.x since it * uses different routing than r8a7795 ES2.0. */ attr = soc_device_match(r8a7795es1); if (attr) vin->info = attr->data; mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (mem == NULL) return -EINVAL; vin->base = devm_ioremap_resource(vin->dev, mem); if (IS_ERR(vin->base)) return PTR_ERR(vin->base); irq = platform_get_irq(pdev, 0); if (irq < 0) return irq; ret = rvin_dma_register(vin, irq); if (ret) return ret; platform_set_drvdata(pdev, vin); if (vin->info->use_mc) { ret = rvin_mc_init(vin); if (ret) goto error_dma_unregister; } ret = rvin_parallel_init(vin); if (ret) goto error_group_unregister; pm_suspend_ignore_children(&pdev->dev, true); pm_runtime_enable(&pdev->dev); return 0; error_group_unregister: if (vin->info->use_mc) { mutex_lock(&vin->group->lock); if (&vin->v4l2_dev == vin->group->notifier.v4l2_dev) { v4l2_async_notifier_unregister(&vin->group->notifier); v4l2_async_notifier_cleanup(&vin->group->notifier); } mutex_unlock(&vin->group->lock); rvin_group_put(vin); } error_dma_unregister: rvin_dma_unregister(vin); return ret; } static int rcar_vin_remove(struct platform_device *pdev) { struct rvin_dev *vin = platform_get_drvdata(pdev); pm_runtime_disable(&pdev->dev); rvin_v4l2_unregister(vin); v4l2_async_notifier_unregister(&vin->notifier); v4l2_async_notifier_cleanup(&vin->notifier); if (vin->info->use_mc) { mutex_lock(&vin->group->lock); if (&vin->v4l2_dev == vin->group->notifier.v4l2_dev) { v4l2_async_notifier_unregister(&vin->group->notifier); v4l2_async_notifier_cleanup(&vin->group->notifier); } mutex_unlock(&vin->group->lock); rvin_group_put(vin); } else { v4l2_ctrl_handler_free(&vin->ctrl_handler); } rvin_dma_unregister(vin); return 0; } static struct platform_driver rcar_vin_driver = { .driver = { .name = "rcar-vin", .of_match_table = rvin_of_id_table, }, .probe = rcar_vin_probe, .remove = rcar_vin_remove, }; module_platform_driver(rcar_vin_driver); MODULE_AUTHOR("Niklas Söderlund <niklas.soderlund@ragnatech.se>"); MODULE_DESCRIPTION("Renesas R-Car VIN camera host driver"); MODULE_LICENSE("GPL");
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