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path: root/drivers/media/video/s5p-fimc/fimc-mdevice.c
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Diffstat (limited to 'drivers/media/video/s5p-fimc/fimc-mdevice.c')
-rw-r--r--drivers/media/video/s5p-fimc/fimc-mdevice.c152
1 files changed, 133 insertions, 19 deletions
diff --git a/drivers/media/video/s5p-fimc/fimc-mdevice.c b/drivers/media/video/s5p-fimc/fimc-mdevice.c
index 212474130dfb..6753c45631b8 100644
--- a/drivers/media/video/s5p-fimc/fimc-mdevice.c
+++ b/drivers/media/video/s5p-fimc/fimc-mdevice.c
@@ -66,6 +66,9 @@ void fimc_pipeline_prepare(struct fimc_pipeline *p, struct media_entity *me)
case CSIS_GROUP_ID:
p->subdevs[IDX_CSIS] = sd;
break;
+ case FLITE_GROUP_ID:
+ p->subdevs[IDX_FLITE] = sd;
+ break;
case FIMC_GROUP_ID:
/* No need to control FIMC subdev through subdev ops */
break;
@@ -336,6 +339,7 @@ static int fimc_register_callback(struct device *dev, void *p)
if (!fimc || !fimc->pdev)
return 0;
+
if (fimc->pdev->id < 0 || fimc->pdev->id >= FIMC_MAX_DEVS)
return 0;
@@ -351,6 +355,31 @@ static int fimc_register_callback(struct device *dev, void *p)
return ret;
}
+static int fimc_lite_register_callback(struct device *dev, void *p)
+{
+ struct fimc_lite *fimc = dev_get_drvdata(dev);
+ struct v4l2_subdev *sd = &fimc->subdev;
+ struct fimc_md *fmd = p;
+ int ret;
+
+ if (fimc == NULL)
+ return 0;
+
+ if (fimc->index >= FIMC_LITE_MAX_DEVS)
+ return 0;
+
+ fmd->fimc_lite[fimc->index] = fimc;
+ sd->grp_id = FLITE_GROUP_ID;
+
+ ret = v4l2_device_register_subdev(&fmd->v4l2_dev, sd);
+ if (ret) {
+ v4l2_err(&fmd->v4l2_dev,
+ "Failed to register FIMC-LITE.%d (%d)\n",
+ fimc->index, ret);
+ }
+ return ret;
+}
+
static int csis_register_callback(struct device *dev, void *p)
{
struct v4l2_subdev *sd = dev_get_drvdata(dev);
@@ -396,6 +425,15 @@ static int fimc_md_register_platform_entities(struct fimc_md *fmd)
fimc_register_callback);
if (ret)
return ret;
+
+ driver = driver_find(FIMC_LITE_DRV_NAME, &platform_bus_type);
+ if (driver && try_module_get(driver->owner)) {
+ ret = driver_for_each_device(driver, NULL, fmd,
+ fimc_lite_register_callback);
+ if (ret)
+ return ret;
+ module_put(driver->owner);
+ }
/*
* Check if there is any sensor on the MIPI-CSI2 bus and
* if not skip the s5p-csis module loading.
@@ -433,6 +471,12 @@ static void fimc_md_unregister_entities(struct fimc_md *fmd)
v4l2_device_unregister_subdev(&fmd->fimc[i]->vid_cap.subdev);
fmd->fimc[i] = NULL;
}
+ for (i = 0; i < FIMC_LITE_MAX_DEVS; i++) {
+ if (fmd->fimc_lite[i] == NULL)
+ continue;
+ v4l2_device_unregister_subdev(&fmd->fimc_lite[i]->subdev);
+ fmd->fimc_lite[i] = NULL;
+ }
for (i = 0; i < CSIS_MAX_ENTITIES; i++) {
if (fmd->csis[i].sd == NULL)
continue;
@@ -456,28 +500,28 @@ static void fimc_md_unregister_entities(struct fimc_md *fmd)
* @pad: the source entity pad index
* @fimc_id: index of the fimc device for which link should be enabled
*/
-static int __fimc_md_create_fimc_links(struct fimc_md *fmd,
- struct media_entity *source,
- struct v4l2_subdev *sensor,
- int pad, int fimc_id)
+static int __fimc_md_create_fimc_sink_links(struct fimc_md *fmd,
+ struct media_entity *source,
+ struct v4l2_subdev *sensor,
+ int pad, int fimc_id)
{
struct fimc_sensor_info *s_info;
struct media_entity *sink;
- unsigned int flags;
+ unsigned int flags = 0;
int ret, i;
for (i = 0; i < FIMC_MAX_DEVS; i++) {
if (!fmd->fimc[i])
- break;
+ continue;
/*
* Some FIMC variants are not fitted with camera capture
* interface. Skip creating a link from sensor for those.
*/
- if (sensor->grp_id == SENSOR_GROUP_ID &&
- !fmd->fimc[i]->variant->has_cam_if)
+ if (!fmd->fimc[i]->variant->has_cam_if)
continue;
flags = (i == fimc_id) ? MEDIA_LNK_FL_ENABLED : 0;
+
sink = &fmd->fimc[i]->vid_cap.subdev.entity;
ret = media_entity_create_link(source, pad, sink,
FIMC_SD_PAD_SINK, flags);
@@ -493,7 +537,7 @@ static int __fimc_md_create_fimc_links(struct fimc_md *fmd,
v4l2_info(&fmd->v4l2_dev, "created link [%s] %c> [%s]",
source->name, flags ? '=' : '-', sink->name);
- if (flags == 0)
+ if (flags == 0 || sensor == NULL)
continue;
s_info = v4l2_get_subdev_hostdata(sensor);
if (!WARN_ON(s_info == NULL)) {
@@ -503,9 +547,55 @@ static int __fimc_md_create_fimc_links(struct fimc_md *fmd,
spin_unlock_irqrestore(&fmd->slock, irq_flags);
}
}
+
+ for (i = 0; i < FIMC_LITE_MAX_DEVS; i++) {
+ if (!fmd->fimc_lite[i])
+ continue;
+
+ flags = (i == fimc_id) ? MEDIA_LNK_FL_ENABLED : 0;
+
+ sink = &fmd->fimc_lite[i]->subdev.entity;
+ ret = media_entity_create_link(source, pad, sink,
+ FLITE_SD_PAD_SINK, flags);
+ if (ret)
+ return ret;
+
+ /* Notify FIMC-LITE subdev entity */
+ ret = media_entity_call(sink, link_setup, &sink->pads[0],
+ &source->pads[pad], flags);
+ if (ret)
+ break;
+
+ v4l2_info(&fmd->v4l2_dev, "created link [%s] %c> [%s]",
+ source->name, flags ? '=' : '-', sink->name);
+ }
return 0;
}
+/* Create links from FIMC-LITE source pads to other entities */
+static int __fimc_md_create_flite_source_links(struct fimc_md *fmd)
+{
+ struct media_entity *source, *sink;
+ unsigned int flags = MEDIA_LNK_FL_ENABLED;
+ int i, ret;
+
+ for (i = 0; i < FIMC_LITE_MAX_DEVS; i++) {
+ struct fimc_lite *fimc = fmd->fimc_lite[i];
+ if (fimc == NULL)
+ continue;
+ source = &fimc->subdev.entity;
+ sink = &fimc->vfd->entity;
+ /* FIMC-LITE's subdev and video node */
+ ret = media_entity_create_link(source, FIMC_SD_PAD_SOURCE,
+ sink, 0, flags);
+ if (ret)
+ break;
+ /* TODO: create links to other entities */
+ }
+
+ return ret;
+}
+
/**
* fimc_md_create_links - create default links between registered entities
*
@@ -562,8 +652,7 @@ static int fimc_md_create_links(struct fimc_md *fmd)
v4l2_info(&fmd->v4l2_dev, "created link [%s] => [%s]",
sensor->entity.name, csis->entity.name);
- source = &csis->entity;
- pad = CSIS_PAD_SOURCE;
+ source = NULL;
break;
case FIMC_ITU_601...FIMC_ITU_656:
@@ -579,9 +668,21 @@ static int fimc_md_create_links(struct fimc_md *fmd)
if (source == NULL)
continue;
- ret = __fimc_md_create_fimc_links(fmd, source, sensor, pad,
- fimc_id++);
+ ret = __fimc_md_create_fimc_sink_links(fmd, source, sensor,
+ pad, fimc_id++);
+ }
+
+ fimc_id = 0;
+ for (i = 0; i < ARRAY_SIZE(fmd->csis); i++) {
+ if (fmd->csis[i].sd == NULL)
+ continue;
+ source = &fmd->csis[i].sd->entity;
+ pad = CSIS_PAD_SOURCE;
+
+ ret = __fimc_md_create_fimc_sink_links(fmd, source, NULL,
+ pad, fimc_id++);
}
+
/* Create immutable links between each FIMC's subdev and video node */
flags = MEDIA_LNK_FL_IMMUTABLE | MEDIA_LNK_FL_ENABLED;
for (i = 0; i < FIMC_MAX_DEVS; i++) {
@@ -595,7 +696,7 @@ static int fimc_md_create_links(struct fimc_md *fmd)
break;
}
- return ret;
+ return __fimc_md_create_flite_source_links(fmd);
}
/*
@@ -703,9 +804,10 @@ int fimc_md_set_camclk(struct v4l2_subdev *sd, bool on)
static int fimc_md_link_notify(struct media_pad *source,
struct media_pad *sink, u32 flags)
{
+ struct fimc_lite *fimc_lite = NULL;
+ struct fimc_dev *fimc = NULL;
struct fimc_pipeline *pipeline;
struct v4l2_subdev *sd;
- struct fimc_dev *fimc;
int ret = 0;
if (media_entity_type(sink->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
@@ -714,6 +816,10 @@ static int fimc_md_link_notify(struct media_pad *source,
sd = media_entity_to_v4l2_subdev(sink->entity);
switch (sd->grp_id) {
+ case FLITE_GROUP_ID:
+ fimc_lite = v4l2_get_subdevdata(sd);
+ pipeline = &fimc_lite->pipeline;
+ break;
case FIMC_GROUP_ID:
fimc = v4l2_get_subdevdata(sd);
pipeline = &fimc->pipeline;
@@ -739,15 +845,23 @@ static int fimc_md_link_notify(struct media_pad *source,
* pipeline is already in use, i.e. its video node is opened.
* Recreate the controls destroyed during the link deactivation.
*/
- mutex_lock(&fimc->lock);
- if (fimc->vid_cap.refcnt > 0) {
+ if (fimc) {
+ mutex_lock(&fimc->lock);
+ if (fimc->vid_cap.refcnt > 0) {
ret = __fimc_pipeline_initialize(pipeline,
source->entity, true);
if (!ret)
ret = fimc_capture_ctrls_create(fimc);
+ }
+ mutex_unlock(&fimc->lock);
+ } else {
+ mutex_lock(&fimc_lite->lock);
+ if (fimc_lite->ref_count > 0) {
+ ret = __fimc_pipeline_initialize(pipeline,
+ source->entity, true);
+ }
+ mutex_unlock(&fimc_lite->lock);
}
- mutex_unlock(&fimc->lock);
-
return ret ? -EPIPE : ret;
}
generated by cgit (git 2.34.1) at 2025-05-19 14:43:37 +0000