#include <linux/media.h>
#include "media.h"
-#include "subdev.h"
#include "tools.h"
-static const char *media_entity_type_to_string(unsigned type)
-{
- static const struct {
- __u32 type;
- const char *name;
- } types[] = {
- { MEDIA_ENTITY_TYPE_NODE, "Node" },
- { MEDIA_ENTITY_TYPE_SUBDEV, "V4L2 subdev" },
- };
-
- unsigned int i;
-
- type &= MEDIA_ENTITY_TYPE_MASK;
-
- for (i = 0; i < ARRAY_SIZE(types); i++) {
- if (types[i].type == type)
- return types[i].name;
- }
-
- return "Unknown";
-}
-
-static const char *media_entity_subtype_to_string(unsigned type)
-{
- static const char *node_types[] = {
- "Unknown",
- "V4L",
- "FB",
- "ALSA",
- "DVB",
- };
- static const char *subdev_types[] = {
- "Unknown",
- "Sensor",
- "Flash",
- "Lens",
- };
-
- unsigned int subtype = type & MEDIA_ENTITY_SUBTYPE_MASK;
-
- switch (type & MEDIA_ENTITY_TYPE_MASK) {
- case MEDIA_ENTITY_TYPE_NODE:
- if (subtype >= ARRAY_SIZE(node_types))
- subtype = 0;
- return node_types[subtype];
-
- case MEDIA_ENTITY_TYPE_SUBDEV:
- if (subtype >= ARRAY_SIZE(subdev_types))
- subtype = 0;
- return subdev_types[subtype];
- default:
- return node_types[0];
- }
-}
-
-static const char *media_pad_type_to_string(unsigned flag)
-{
- static const struct {
- __u32 flag;
- const char *name;
- } flags[] = {
- { MEDIA_PAD_FLAG_INPUT, "Input" },
- { MEDIA_PAD_FLAG_OUTPUT, "Output" },
- };
-
- unsigned int i;
-
- for (i = 0; i < ARRAY_SIZE(flags); i++) {
- if (flags[i].flag & flag)
- return flags[i].name;
- }
-
- return "Unknown";
-}
-
/*
* media_entity_remote_pad -
*/
-struct media_entity_pad *media_entity_remote_pad(struct media_entity_pad *pad)
+struct media_pad *media_entity_remote_source(struct media_pad *pad)
{
unsigned int i;
- for (i = 0; i < pad->entity->info.links; ++i) {
- struct media_entity_link *link = &pad->entity->links[i];
+ if (!(pad->flags & MEDIA_PAD_FLAG_INPUT))
+ return NULL;
+
+ for (i = 0; i < pad->entity->num_links; ++i) {
+ struct media_link *link = &pad->entity->links[i];
if (!(link->flags & MEDIA_LINK_FLAG_ACTIVE))
continue;
- if (link->source == pad)
- return link->sink;
-
if (link->sink == pad)
return link->source;
}
* media_setup_link -
*/
int media_setup_link(struct media_device *media,
- struct media_entity_pad *source,
- struct media_entity_pad *sink,
+ struct media_pad *source,
+ struct media_pad *sink,
__u32 flags)
{
- struct media_entity_link *link;
+ struct media_link *link;
struct media_link_desc ulink;
unsigned int i;
int ret;
- for (i = 0; i < source->entity->info.links; i++) {
+ for (i = 0; i < source->entity->num_links; i++) {
link = &source->entity->links[i];
if (link->source->entity == source->entity &&
break;
}
- if (i == source->entity->info.links) {
+ if (i == source->entity->num_links) {
printf("%s: Link not found\n", __func__);
return -EINVAL;
}
for (i = 0; i < media->entities_count; ++i) {
struct media_entity *entity = &media->entities[i];
- for (j = 0; j < entity->info.links; j++) {
- struct media_entity_link *link = &entity->links[j];
+ for (j = 0; j < entity->num_links; j++) {
+ struct media_link *link = &entity->links[j];
- if (link->flags & MEDIA_LINK_FLAG_IMMUTABLE)
+ if (link->flags & MEDIA_LINK_FLAG_IMMUTABLE ||
+ link->source->entity != entity)
continue;
ret = media_setup_link(media, link->source, link->sink,
return 0;
}
-static void media_print_topology_dot(struct media_device *media)
-{
- unsigned int i, j;
-
- printf("digraph board {\n");
- printf("\trankdir=TB\n");
-
- for (i = 0; i < media->entities_count; ++i) {
- struct media_entity *entity = &media->entities[i];
- unsigned int npads;
-
- switch (media_entity_type(entity)) {
- case MEDIA_ENTITY_TYPE_NODE:
- printf("\tn%08x [label=\"%s\\n%s\", shape=box, style=filled, "
- "fillcolor=yellow]\n",
- entity->info.id, entity->info.name, entity->devname);
- break;
-
- case MEDIA_ENTITY_TYPE_SUBDEV:
- printf("\tn%08x [label=\"{{", entity->info.id);
-
- for (j = 0, npads = 0; j < entity->info.pads; ++j) {
- if (!(entity->pads[j].flags & MEDIA_PAD_FLAG_INPUT))
- continue;
-
- printf("%s<port%u> %u", npads ? " | " : "", j, j);
- npads++;
- }
-
- printf("} | %s", entity->info.name);
- if (entity->devname)
- printf("\\n%s", entity->devname);
- printf(" | {");
-
- for (j = 0, npads = 0; j < entity->info.pads; ++j) {
- if (!(entity->pads[j].flags & MEDIA_PAD_FLAG_OUTPUT))
- continue;
-
- printf("%s<port%u> %u", npads ? " | " : "", j, j);
- npads++;
- }
-
- printf("}}\", shape=Mrecord, style=filled, fillcolor=green]\n");
- break;
-
- default:
- continue;
- }
-
- for (j = 0; j < entity->info.links; j++) {
- struct media_entity_link *link = &entity->links[j];
-
- if (link->source->entity != entity)
- continue;
-
- printf("\tn%08x", link->source->entity->info.id);
- if (media_entity_type(link->source->entity) == MEDIA_ENTITY_TYPE_SUBDEV)
- printf(":port%u", link->source->index);
- printf(" -> ");
- printf("n%08x", link->sink->entity->info.id);
- if (media_entity_type(link->sink->entity) == MEDIA_ENTITY_TYPE_SUBDEV)
- printf(":port%u", link->sink->index);
-
- if (link->flags & MEDIA_LINK_FLAG_IMMUTABLE)
- printf(" [style=bold]");
- else if (!(link->flags & MEDIA_LINK_FLAG_ACTIVE))
- printf(" [style=dashed]");
- printf("\n");
- }
- }
-
- printf("}\n");
-}
-
-static void media_print_topology_text(struct media_device *media)
+static struct media_link *media_entity_add_link(struct media_entity *entity)
{
- unsigned int i, j, k;
- unsigned int padding;
-
- printf("Device topology\n");
-
- for (i = 0; i < media->entities_count; ++i) {
- struct media_entity *entity = &media->entities[i];
-
- padding = printf("- entity %u: ", entity->info.id);
- printf("%s (%u pad%s, %u link%s)\n", entity->info.name,
- entity->info.pads, entity->info.pads > 1 ? "s" : "",
- entity->info.links, entity->info.links > 1 ? "s" : "");
- printf("%*ctype %s subtype %s\n", padding, ' ',
- media_entity_type_to_string(entity->info.type),
- media_entity_subtype_to_string(entity->info.type));
- if (entity->devname[0])
- printf("%*cdevice node name %s\n", padding, ' ', entity->devname);
-
- for (j = 0; j < entity->info.pads; j++) {
- struct media_entity_pad *pad = &entity->pads[j];
-
- printf("\tpad%u: %s ", j, media_pad_type_to_string(pad->flags));
-
- if (media_entity_type(entity) == MEDIA_ENTITY_TYPE_SUBDEV)
- v4l2_subdev_print_format(entity, j, V4L2_SUBDEV_FORMAT_ACTIVE);
-
- printf("\n");
-
- for (k = 0; k < entity->info.links; k++) {
- struct media_entity_link *link = &entity->links[k];
-
- if (link->source->entity != entity ||
- link->source->index != j)
- continue;
+ if (entity->num_links >= entity->max_links) {
+ struct media_link *links = entity->links;
+ unsigned int max_links = entity->max_links * 2;
+ unsigned int i;
- printf("\t\t-> '%s':pad%u [",
- link->sink->entity->info.name, link->sink->index);
+ links = realloc(links, max_links * sizeof *links);
+ if (links == NULL)
+ return NULL;
- if (link->flags & MEDIA_LINK_FLAG_IMMUTABLE)
- printf("IMMUTABLE,");
- if (link->flags & MEDIA_LINK_FLAG_ACTIVE)
- printf("ACTIVE");
+ for (i = 0; i < entity->num_links; ++i)
+ links[i].twin->twin = &links[i];
- printf("]\n");
- }
- }
- printf("\n");
+ entity->max_links = max_links;
+ entity->links = links;
}
-}
-void media_print_topology(struct media_device *media, int dot)
-{
- if (dot)
- media_print_topology_dot(media);
- else
- media_print_topology_text(media);
+ return &entity->links[entity->num_links++];
}
static int media_enum_links(struct media_device *media)
for (i = 0; i < entity->info.links; ++i) {
struct media_link_desc *link = &links.links[i];
+ struct media_link *fwdlink;
+ struct media_link *backlink;
struct media_entity *source;
struct media_entity *sink;
link->sink.entity, link->sink.index);
ret = -EINVAL;
} else {
- entity->links[i].source = &source->pads[link->source.index];
- entity->links[i].sink = &sink->pads[link->sink.index];
- entity->links[i].flags = links.links[i].flags;
+ fwdlink = media_entity_add_link(source);
+ fwdlink->source = &source->pads[link->source.index];
+ fwdlink->sink = &sink->pads[link->sink.index];
+ fwdlink->flags = links.links[i].flags;
+
+ backlink = media_entity_add_link(sink);
+ backlink->source = &source->pads[link->source.index];
+ backlink->sink = &sink->pads[link->sink.index];
+ backlink->flags = links.links[i].flags;
+
+ fwdlink->twin = backlink;
+ backlink->twin = fwdlink;
}
}
return -errno;
}
+ /* Number of links (for outbound links) plus number of pads (for
+ * inbound links) is a good safe initial estimate of the total
+ * number of links.
+ */
+ entity->max_links = entity->info.pads + entity->info.links;
+
entity->pads = malloc(entity->info.pads * sizeof(*entity->pads));
- entity->links = malloc(entity->info.links * sizeof(*entity->links));
+ entity->links = malloc(entity->max_links * sizeof(*entity->links));
if (entity->pads == NULL || entity->links == NULL)
return -ENOMEM;
projects / media-ctl.git / blobdiff