1508 строки
43 KiB
C
1508 строки
43 KiB
C
// 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.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_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;
|
|
|
|
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);
|
|
|
|
return 0;
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
/* -----------------------------------------------------------------------------
|
|
* Controls
|
|
*/
|
|
|
|
static int rvin_s_ctrl(struct v4l2_ctrl *ctrl)
|
|
{
|
|
struct rvin_dev *vin =
|
|
container_of(ctrl->handler, struct rvin_dev, ctrl_handler);
|
|
|
|
switch (ctrl->id) {
|
|
case V4L2_CID_ALPHA_COMPONENT:
|
|
rvin_set_alpha(vin, ctrl->val);
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct v4l2_ctrl_ops rvin_ctrl_ops = {
|
|
.s_ctrl = rvin_s_ctrl,
|
|
};
|
|
|
|
/* -----------------------------------------------------------------------------
|
|
* 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;
|
|
|
|
v4l2_ctrl_new_std(&vin->ctrl_handler, &rvin_ctrl_ops,
|
|
V4L2_CID_ALPHA_COMPONENT, 0, 255, 1, 255);
|
|
|
|
if (vin->ctrl_handler.error) {
|
|
ret = vin->ctrl_handler.error;
|
|
v4l2_ctrl_handler_free(&vin->ctrl_handler);
|
|
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_of(struct rvin_dev *vin)
|
|
{
|
|
struct fwnode_handle *ep, *fwnode;
|
|
struct v4l2_fwnode_endpoint vep = {
|
|
.bus_type = V4L2_MBUS_UNKNOWN,
|
|
};
|
|
struct v4l2_async_subdev *asd;
|
|
int ret;
|
|
|
|
ep = fwnode_graph_get_endpoint_by_id(dev_fwnode(vin->dev), 0, 0, 0);
|
|
if (!ep)
|
|
return 0;
|
|
|
|
fwnode = fwnode_graph_get_remote_endpoint(ep);
|
|
ret = v4l2_fwnode_endpoint_parse(ep, &vep);
|
|
fwnode_handle_put(ep);
|
|
if (ret) {
|
|
vin_err(vin, "Failed to parse %pOF\n", to_of_node(fwnode));
|
|
ret = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
switch (vep.bus_type) {
|
|
case V4L2_MBUS_PARALLEL:
|
|
case V4L2_MBUS_BT656:
|
|
vin_dbg(vin, "Found %s media bus\n",
|
|
vep.bus_type == V4L2_MBUS_PARALLEL ?
|
|
"PARALLEL" : "BT656");
|
|
vin->parallel.mbus_type = vep.bus_type;
|
|
vin->parallel.bus = vep.bus.parallel;
|
|
break;
|
|
default:
|
|
vin_err(vin, "Unknown media bus type\n");
|
|
ret = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
asd = v4l2_async_notifier_add_fwnode_subdev(&vin->notifier, fwnode,
|
|
struct v4l2_async_subdev);
|
|
if (IS_ERR(asd)) {
|
|
ret = PTR_ERR(asd);
|
|
goto out;
|
|
}
|
|
|
|
vin->parallel.asd = asd;
|
|
|
|
vin_dbg(vin, "Add parallel OF device %pOF\n", to_of_node(fwnode));
|
|
out:
|
|
fwnode_handle_put(fwnode);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int rvin_parallel_init(struct rvin_dev *vin)
|
|
{
|
|
int ret;
|
|
|
|
v4l2_async_notifier_init(&vin->notifier);
|
|
|
|
ret = rvin_parallel_parse_of(vin);
|
|
if (ret)
|
|
return ret;
|
|
|
|
/* If using mc, it's fine not to have any input registered. */
|
|
if (!vin->parallel.asd)
|
|
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->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 = media_device_register(&vin->group->mdev);
|
|
if (ret)
|
|
return 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].asd != asd)
|
|
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);
|
|
|
|
media_device_unregister(&vin->group->mdev);
|
|
}
|
|
|
|
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].asd != asd)
|
|
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(struct rvin_dev *vin, unsigned int id)
|
|
{
|
|
struct fwnode_handle *ep, *fwnode;
|
|
struct v4l2_fwnode_endpoint vep = {
|
|
.bus_type = V4L2_MBUS_CSI2_DPHY,
|
|
};
|
|
struct v4l2_async_subdev *asd;
|
|
int ret;
|
|
|
|
ep = fwnode_graph_get_endpoint_by_id(dev_fwnode(vin->dev), 1, id, 0);
|
|
if (!ep)
|
|
return 0;
|
|
|
|
fwnode = fwnode_graph_get_remote_endpoint(ep);
|
|
ret = v4l2_fwnode_endpoint_parse(ep, &vep);
|
|
fwnode_handle_put(ep);
|
|
if (ret) {
|
|
vin_err(vin, "Failed to parse %pOF\n", to_of_node(fwnode));
|
|
ret = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
if (!of_device_is_available(to_of_node(fwnode))) {
|
|
vin_dbg(vin, "OF device %pOF disabled, ignoring\n",
|
|
to_of_node(fwnode));
|
|
ret = -ENOTCONN;
|
|
goto out;
|
|
}
|
|
|
|
asd = v4l2_async_notifier_add_fwnode_subdev(&vin->group->notifier,
|
|
fwnode,
|
|
struct v4l2_async_subdev);
|
|
if (IS_ERR(asd)) {
|
|
ret = PTR_ERR(asd);
|
|
goto out;
|
|
}
|
|
|
|
vin->group->csi[vep.base.id].asd = asd;
|
|
|
|
vin_dbg(vin, "Add group OF device %pOF to slot %u\n",
|
|
to_of_node(fwnode), vep.base.id);
|
|
out:
|
|
fwnode_handle_put(fwnode);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int rvin_mc_parse_of_graph(struct rvin_dev *vin)
|
|
{
|
|
unsigned int count = 0, vin_mask = 0;
|
|
unsigned int i, id;
|
|
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;
|
|
|
|
for (id = 0; id < RVIN_CSI_MAX; id++) {
|
|
if (vin->group->csi[id].asd)
|
|
continue;
|
|
|
|
ret = rvin_mc_parse_of(vin->group->vin[i], id);
|
|
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);
|
|
|
|
ret = v4l2_ctrl_handler_init(&vin->ctrl_handler, 1);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
v4l2_ctrl_new_std(&vin->ctrl_handler, &rvin_ctrl_ops,
|
|
V4L2_CID_ALPHA_COMPONENT, 0, 255, 1, 255);
|
|
|
|
if (vin->ctrl_handler.error) {
|
|
ret = vin->ctrl_handler.error;
|
|
v4l2_ctrl_handler_free(&vin->ctrl_handler);
|
|
return ret;
|
|
}
|
|
|
|
vin->vdev.ctrl_handler = &vin->ctrl_handler;
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* -----------------------------------------------------------------------------
|
|
* Suspend / Resume
|
|
*/
|
|
|
|
static int __maybe_unused rvin_suspend(struct device *dev)
|
|
{
|
|
struct rvin_dev *vin = dev_get_drvdata(dev);
|
|
|
|
if (vin->state != RUNNING)
|
|
return 0;
|
|
|
|
rvin_stop_streaming(vin);
|
|
|
|
vin->state = SUSPENDED;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int __maybe_unused rvin_resume(struct device *dev)
|
|
{
|
|
struct rvin_dev *vin = dev_get_drvdata(dev);
|
|
|
|
if (vin->state != SUSPENDED)
|
|
return 0;
|
|
|
|
/*
|
|
* Restore group master CHSEL setting.
|
|
*
|
|
* This needs to be done by every VIN resuming not only the master
|
|
* as we don't know if and in which order the master VINs will
|
|
* be resumed.
|
|
*/
|
|
if (vin->info->use_mc) {
|
|
unsigned int master_id = rvin_group_id_to_master(vin->id);
|
|
struct rvin_dev *master = vin->group->vin[master_id];
|
|
int ret;
|
|
|
|
if (WARN_ON(!master))
|
|
return -ENODEV;
|
|
|
|
ret = rvin_set_channel_routing(master, master->chsel);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
return rvin_start_streaming(vin);
|
|
}
|
|
|
|
/* -----------------------------------------------------------------------------
|
|
* 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_r8a774e1_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_CSI20, .channel = 0, .vin = 4, .mask = BIT(1) | BIT(4) },
|
|
{ .csi = RVIN_CSI20, .channel = 0, .vin = 5, .mask = BIT(0) },
|
|
{ .csi = RVIN_CSI20, .channel = 1, .vin = 5, .mask = BIT(4) },
|
|
{ .csi = RVIN_CSI20, .channel = 1, .vin = 6, .mask = BIT(0) },
|
|
{ .csi = RVIN_CSI20, .channel = 0, .vin = 6, .mask = BIT(2) },
|
|
{ .csi = RVIN_CSI20, .channel = 2, .vin = 6, .mask = BIT(4) },
|
|
{ .csi = RVIN_CSI20, .channel = 1, .vin = 7, .mask = BIT(1) | BIT(2) },
|
|
{ .csi = RVIN_CSI20, .channel = 3, .vin = 7, .mask = BIT(4) },
|
|
{ /* Sentinel */ }
|
|
};
|
|
|
|
static const struct rvin_info rcar_info_r8a774e1 = {
|
|
.model = RCAR_GEN3,
|
|
.use_mc = true,
|
|
.max_width = 4096,
|
|
.max_height = 4096,
|
|
.routes = rcar_info_r8a774e1_routes,
|
|
};
|
|
|
|
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,
|
|
.nv12 = 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,
|
|
.nv12 = 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,
|
|
.nv12 = 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,
|
|
.nv12 = 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,
|
|
.nv12 = 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,
|
|
.nv12 = 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-r8a774b1",
|
|
.data = &rcar_info_r8a77965,
|
|
},
|
|
{
|
|
.compatible = "renesas,vin-r8a774c0",
|
|
.data = &rcar_info_r8a77990,
|
|
},
|
|
{
|
|
.compatible = "renesas,vin-r8a774e1",
|
|
.data = &rcar_info_r8a774e1,
|
|
},
|
|
{
|
|
.compatible = "renesas,vin-r8a7778",
|
|
.data = &rcar_info_m1,
|
|
},
|
|
{
|
|
.compatible = "renesas,vin-r8a7779",
|
|
.data = &rcar_info_h1,
|
|
},
|
|
{
|
|
.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;
|
|
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);
|
|
vin->alpha = 0xff;
|
|
|
|
/*
|
|
* 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;
|
|
|
|
vin->base = devm_platform_ioremap_resource(pdev, 0);
|
|
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:
|
|
v4l2_ctrl_handler_free(&vin->ctrl_handler);
|
|
|
|
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) {
|
|
v4l2_async_notifier_unregister(&vin->group->notifier);
|
|
v4l2_async_notifier_cleanup(&vin->group->notifier);
|
|
rvin_group_put(vin);
|
|
}
|
|
|
|
v4l2_ctrl_handler_free(&vin->ctrl_handler);
|
|
|
|
rvin_dma_unregister(vin);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static SIMPLE_DEV_PM_OPS(rvin_pm_ops, rvin_suspend, rvin_resume);
|
|
|
|
static struct platform_driver rcar_vin_driver = {
|
|
.driver = {
|
|
.name = "rcar-vin",
|
|
.pm = &rvin_pm_ops,
|
|
.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");
|