diff options
Diffstat (limited to 'drivers/media/platform/rcar-vin/rcar-core.c')
| -rw-r--r-- | drivers/media/platform/rcar-vin/rcar-core.c | 959 |
1 files changed, 904 insertions, 55 deletions
diff --git a/drivers/media/platform/rcar-vin/rcar-core.c b/drivers/media/platform/rcar-vin/rcar-core.c index f1fc7978d6d1..d3072e166a1c 100644 --- a/drivers/media/platform/rcar-vin/rcar-core.c +++ b/drivers/media/platform/rcar-vin/rcar-core.c @@ -20,12 +20,341 @@ #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) + +/* ----------------------------------------------------------------------------- + * 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; + + /* If any entity is in use don't allow link changes. */ + media_device_for_each_entity(entity, &group->mdev) + if (entity->use_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); + 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)); +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); + + strlcpy(mdev->driver_name, KBUILD_MODNAME, sizeof(mdev->driver_name)); + strlcpy(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 */ @@ -46,30 +375,93 @@ static int rvin_find_pad(struct v4l2_subdev *sd, int direction) return -EINVAL; } -static bool rvin_mbus_supported(struct rvin_graph_entity *entity) +/* ----------------------------------------------------------------------------- + * Digital async notifier + */ + +/* The vin lock should be held when calling the subdevice attach and detach */ +static int rvin_digital_subdevice_attach(struct rvin_dev *vin, + struct v4l2_subdev *subdev) { - struct v4l2_subdev *sd = entity->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->digital->source_pad = ret; + + ret = rvin_find_pad(subdev, MEDIA_PAD_FL_SINK); + vin->digital->sink_pad = ret < 0 ? 0 : ret; + + /* Find compatible subdevices mbus format */ + vin->mbus_code = 0; code.index = 0; - code.pad = entity->source_pad; - while (!v4l2_subdev_call(sd, pad, enum_mbus_code, NULL, &code)) { + code.pad = vin->digital->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: - entity->code = code.code; - return true; + vin->mbus_code = code.code; + vin_dbg(vin, "Found media bus format for %s: %d\n", + subdev->name, vin->mbus_code); + break; default: break; } } - return false; + 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); + if (ret < 0) { + v4l2_ctrl_handler_free(&vin->ctrl_handler); + return ret; + } + + vin->vdev.ctrl_handler = &vin->ctrl_handler; + + vin->digital->subdev = subdev; + + return 0; +} + +static void rvin_digital_subdevice_detach(struct rvin_dev *vin) +{ + rvin_v4l2_unregister(vin); + v4l2_ctrl_handler_free(&vin->ctrl_handler); + + vin->vdev.ctrl_handler = NULL; + vin->digital->subdev = NULL; } static int rvin_digital_notify_complete(struct v4l2_async_notifier *notifier) @@ -77,23 +469,13 @@ static int rvin_digital_notify_complete(struct v4l2_async_notifier *notifier) struct rvin_dev *vin = notifier_to_vin(notifier); int ret; - /* Verify subdevices mbus format */ - if (!rvin_mbus_supported(vin->digital)) { - vin_err(vin, "Unsupported media bus format for %s\n", - vin->digital->subdev->name); - return -EINVAL; - } - - vin_dbg(vin, "Found media bus format for %s: %d\n", - vin->digital->subdev->name, vin->digital->code); - ret = v4l2_device_register_subdev_nodes(&vin->v4l2_dev); if (ret < 0) { vin_err(vin, "Failed to register subdev nodes\n"); return ret; } - return rvin_v4l2_probe(vin); + return rvin_v4l2_register(vin); } static void rvin_digital_notify_unbind(struct v4l2_async_notifier *notifier, @@ -103,8 +485,10 @@ static void rvin_digital_notify_unbind(struct v4l2_async_notifier *notifier, struct rvin_dev *vin = notifier_to_vin(notifier); vin_dbg(vin, "unbind digital subdev %s\n", subdev->name); - rvin_v4l2_remove(vin); - vin->digital->subdev = NULL; + + mutex_lock(&vin->lock); + rvin_digital_subdevice_detach(vin); + mutex_unlock(&vin->lock); } static int rvin_digital_notify_bound(struct v4l2_async_notifier *notifier, @@ -114,19 +498,13 @@ static int rvin_digital_notify_bound(struct v4l2_async_notifier *notifier, struct rvin_dev *vin = notifier_to_vin(notifier); int ret; - v4l2_set_subdev_hostdata(subdev, vin); - - /* Find source and sink pad of remote subdevice */ - - ret = rvin_find_pad(subdev, MEDIA_PAD_FL_SOURCE); - if (ret < 0) + mutex_lock(&vin->lock); + ret = rvin_digital_subdevice_attach(vin, subdev); + mutex_unlock(&vin->lock); + if (ret) return ret; - vin->digital->source_pad = ret; - ret = rvin_find_pad(subdev, MEDIA_PAD_FL_SINK); - vin->digital->sink_pad = ret < 0 ? 0 : ret; - - vin->digital->subdev = subdev; + v4l2_set_subdev_hostdata(subdev, vin); vin_dbg(vin, "bound subdev %s source pad: %u sink pad: %u\n", subdev->name, vin->digital->source_pad, @@ -134,13 +512,13 @@ static int rvin_digital_notify_bound(struct v4l2_async_notifier *notifier, return 0; } + static const struct v4l2_async_notifier_operations rvin_digital_notify_ops = { .bound = rvin_digital_notify_bound, .unbind = rvin_digital_notify_unbind, .complete = rvin_digital_notify_complete, }; - static int rvin_digital_parse_v4l2(struct device *dev, struct v4l2_fwnode_endpoint *vep, struct v4l2_async_subdev *asd) @@ -152,16 +530,16 @@ static int rvin_digital_parse_v4l2(struct device *dev, if (vep->base.port || vep->base.id) return -ENOTCONN; - rvge->mbus_cfg.type = vep->bus_type; + vin->mbus_cfg.type = vep->bus_type; - switch (rvge->mbus_cfg.type) { + switch (vin->mbus_cfg.type) { case V4L2_MBUS_PARALLEL: vin_dbg(vin, "Found PARALLEL media bus\n"); - rvge->mbus_cfg.flags = vep->bus.parallel.flags; + vin->mbus_cfg.flags = vep->bus.parallel.flags; break; case V4L2_MBUS_BT656: vin_dbg(vin, "Found BT656 media bus\n"); - rvge->mbus_cfg.flags = 0; + vin->mbus_cfg.flags = 0; break; default: vin_err(vin, "Unknown media bus type\n"); @@ -200,24 +578,477 @@ static int rvin_digital_graph_init(struct rvin_dev *vin) } /* ----------------------------------------------------------------------------- + * Group async notifier + */ + +static int rvin_group_notify_complete(struct v4l2_async_notifier *notifier) +{ + struct rvin_dev *vin = notifier_to_vin(notifier); + 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]) { + 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 = notifier_to_vin(notifier); + 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 = notifier_to_vin(notifier); + 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); + + 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; + + } + + if (vin->group->csi[vep->base.id].fwnode) { + vin_dbg(vin, "OF device %pOF already handled\n", + to_of_node(asd->match.fwnode)); + return -ENOTCONN; + } + + 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); + + return 0; +} + +static int rvin_mc_parse_of_graph(struct rvin_dev *vin) +{ + unsigned int count = 0; + unsigned int i; + int ret; + + mutex_lock(&vin->group->lock); + + /* If there already is a notifier something has gone wrong, bail out. */ + if (WARN_ON(vin->group->notifier)) { + mutex_unlock(&vin->group->lock); + return -EINVAL; + } + + /* 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++; + + if (vin->group->count != count) { + mutex_unlock(&vin->group->lock); + return 0; + } + + /* + * Have all VIN's look for subdevices. Some subdevices will overlap + * but the parser function can handle it, so each subdevice will + * only be registered once with the notifier. + */ + + vin->group->notifier = &vin->notifier; + + for (i = 0; i < RCAR_VIN_NUM; i++) { + if (!vin->group->vin[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) { + mutex_unlock(&vin->group->lock); + return ret; + } + } + + mutex_unlock(&vin->group->lock); + + vin->group->notifier->ops = &rvin_group_notify_ops; + + ret = v4l2_async_notifier_register(&vin->v4l2_dev, &vin->notifier); + if (ret < 0) { + vin_err(vin, "Notifier registration failed\n"); + return ret; + } + + return 0; +} + +static int rvin_mc_init(struct rvin_dev *vin) +{ + int ret; + + /* All our sources are CSI-2 */ + vin->mbus_cfg.type = V4L2_MBUS_CSI2; + vin->mbus_cfg.flags = 0; + + 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_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 of_device_id rvin_of_id_table[] = { - { .compatible = "renesas,vin-r8a7794", .data = (void *)RCAR_GEN2 }, - { .compatible = "renesas,vin-r8a7793", .data = (void *)RCAR_GEN2 }, - { .compatible = "renesas,vin-r8a7791", .data = (void *)RCAR_GEN2 }, - { .compatible = "renesas,vin-r8a7790", .data = (void *)RCAR_GEN2 }, - { .compatible = "renesas,vin-r8a7779", .data = (void *)RCAR_H1 }, - { .compatible = "renesas,vin-r8a7778", .data = (void *)RCAR_M1 }, - { .compatible = "renesas,rcar-gen2-vin", .data = (void *)RCAR_GEN2 }, - { }, + { + .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-r8a77970", + .data = &rcar_info_r8a77970, + }, + { /* 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 of_device_id *match; + const struct soc_device_attribute *attr; struct rvin_dev *vin; struct resource *mem; int irq, ret; @@ -226,12 +1057,16 @@ static int rcar_vin_probe(struct platform_device *pdev) if (!vin) return -ENOMEM; - match = of_match_device(of_match_ptr(rvin_of_id_table), &pdev->dev); - if (!match) - return -ENODEV; - vin->dev = &pdev->dev; - vin->chip = (enum chip_id)match->data; + 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) @@ -245,13 +1080,15 @@ static int rcar_vin_probe(struct platform_device *pdev) if (irq < 0) return irq; - ret = rvin_dma_probe(vin, irq); + ret = rvin_dma_register(vin, irq); if (ret) return ret; platform_set_drvdata(pdev, vin); - - ret = rvin_digital_graph_init(vin); + if (vin->info->use_mc) + ret = rvin_mc_init(vin); + else + ret = rvin_digital_graph_init(vin); if (ret < 0) goto error; @@ -260,7 +1097,7 @@ static int rcar_vin_probe(struct platform_device *pdev) return 0; error: - rvin_dma_remove(vin); + rvin_dma_unregister(vin); v4l2_async_notifier_cleanup(&vin->notifier); return ret; @@ -272,10 +1109,22 @@ static int rcar_vin_remove(struct platform_device *pdev) pm_runtime_disable(&pdev->dev); + rvin_v4l2_unregister(vin); + v4l2_async_notifier_unregister(&vin->notifier); v4l2_async_notifier_cleanup(&vin->notifier); - rvin_dma_remove(vin); + if (vin->info->use_mc) { + mutex_lock(&vin->group->lock); + if (vin->group->notifier == &vin->notifier) + vin->group->notifier = NULL; + mutex_unlock(&vin->group->lock); + rvin_group_put(vin); + } else { + v4l2_ctrl_handler_free(&vin->ctrl_handler); + } + + rvin_dma_unregister(vin); return 0; } |