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-rw-r--r--main.c809
1 files changed, 0 insertions, 809 deletions
diff --git a/main.c b/main.c
deleted file mode 100644
index aa4ced0..0000000
--- a/main.c
+++ /dev/null
@@ -1,809 +0,0 @@
-/*
- * Media controller test application
- *
- * Copyright (C) 2010 Ideas on board SPRL <laurent.pinchart@ideasonboard.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- */
-
-#include <sys/mman.h>
-#include <sys/ioctl.h>
-#include <sys/time.h>
-#include <sys/stat.h>
-
-#include <ctype.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-#include <linux/types.h>
-#include <linux/media.h>
-#include <linux/v4l2-mediabus.h>
-#include <linux/v4l2-subdev.h>
-#include <linux/videodev2.h>
-
-#include "media.h"
-#include "options.h"
-#include "subdev.h"
-#include "tools.h"
-
-/* -----------------------------------------------------------------------------
- * Printing
- */
-
-static struct {
- const char *name;
- enum v4l2_mbus_pixelcode code;
-} mbus_formats[] = {
- { "Y8", V4L2_MBUS_FMT_Y8_1X8},
- { "YUYV", V4L2_MBUS_FMT_YUYV8_1X16 },
- { "UYVY", V4L2_MBUS_FMT_UYVY8_1X16 },
- { "SGRBG10", V4L2_MBUS_FMT_SGRBG10_1X10 },
- { "SGRBG10_DPCM8", V4L2_MBUS_FMT_SGRBG10_DPCM8_1X8 },
-};
-
-static const char *pixelcode_to_string(enum v4l2_mbus_pixelcode code)
-{
- unsigned int i;
-
- for (i = 0; i < ARRAY_SIZE(mbus_formats); ++i) {
- if (mbus_formats[i].code == code)
- return mbus_formats[i].name;
- }
-
- return "unknown";
-}
-
-static enum v4l2_mbus_pixelcode string_to_pixelcode(const char *string,
- unsigned int length)
-{
- unsigned int i;
-
- for (i = 0; i < ARRAY_SIZE(mbus_formats); ++i) {
- if (strncmp(mbus_formats[i].name, string, length) == 0)
- break;
- }
-
- if (i == ARRAY_SIZE(mbus_formats))
- return (enum v4l2_mbus_pixelcode)-1;
-
- return mbus_formats[i].code;
-}
-
-static void v4l2_subdev_print_format(struct media_entity *entity,
- unsigned int pad, enum v4l2_subdev_format_whence which)
-{
- struct v4l2_mbus_framefmt format;
- struct v4l2_rect rect;
- int ret;
-
- ret = v4l2_subdev_get_format(entity, &format, pad, which);
- if (ret != 0)
- return;
-
- printf("[%s %ux%u", pixelcode_to_string(format.code),
- format.width, format.height);
-
- ret = v4l2_subdev_get_crop(entity, &rect, pad, which);
- if (ret == 0)
- printf(" (%u,%u)/%ux%u", rect.left, rect.top,
- rect.width, rect.height);
- printf("]");
-}
-
-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";
-}
-
-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->num_links; j++) {
- struct media_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)
-{
- 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_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->num_links; k++) {
- struct media_link *link = &entity->links[k];
-
- if (link->source->entity != entity ||
- link->source->index != j)
- continue;
-
- printf("\t\t-> '%s':pad%u [",
- link->sink->entity->info.name, link->sink->index);
-
- if (link->flags & MEDIA_LINK_FLAG_IMMUTABLE)
- printf("IMMUTABLE,");
- if (link->flags & MEDIA_LINK_FLAG_ACTIVE)
- printf("ACTIVE");
-
- printf("]\n");
- }
- }
- printf("\n");
- }
-}
-
-void media_print_topology(struct media_device *media, int dot)
-{
- if (dot)
- media_print_topology_dot(media);
- else
- media_print_topology_text(media);
-}
-
-/* -----------------------------------------------------------------------------
- * Links setup
- */
-
-static struct media_pad *parse_pad(struct media_device *media, const char *p, char **endp)
-{
- unsigned int entity_id, pad;
- struct media_entity *entity;
- char *end;
-
- for (; isspace(*p); ++p);
-
- if (*p == '"') {
- for (end = (char *)p + 1; *end && *end != '"'; ++end);
- if (*end != '"')
- return NULL;
-
- entity = media_get_entity_by_name(media, p + 1, end - p - 1);
- if (entity == NULL)
- return NULL;
-
- ++end;
- } else {
- entity_id = strtoul(p, &end, 10);
- entity = media_get_entity_by_id(media, entity_id);
- if (entity == NULL)
- return NULL;
- }
- for (; isspace(*end); ++end);
-
- if (*end != ':')
- return NULL;
- for (p = end + 1; isspace(*p); ++p);
-
- pad = strtoul(p, &end, 10);
- for (p = end; isspace(*p); ++p);
-
- if (pad >= entity->info.pads)
- return NULL;
-
- for (p = end; isspace(*p); ++p);
- if (endp)
- *endp = (char *)p;
-
- return &entity->pads[pad];
-}
-
-static struct media_link *parse_link(struct media_device *media, const char *p, char **endp)
-{
- struct media_link *link;
- struct media_pad *source;
- struct media_pad *sink;
- unsigned int i;
- char *end;
-
- source = parse_pad(media, p, &end);
- if (source == NULL)
- return NULL;
-
- if (end[0] != '-' || end[1] != '>')
- return NULL;
- p = end + 2;
-
- sink = parse_pad(media, p, &end);
- if (sink == NULL)
- return NULL;
-
- *endp = end;
-
- for (i = 0; i < source->entity->num_links; i++) {
- link = &source->entity->links[i];
-
- if (link->source == source && link->sink == sink)
- return link;
- }
-
- return NULL;
-}
-
-static int setup_link(struct media_device *media, const char *p, char **endp)
-{
- struct media_link *link;
- __u32 flags;
- char *end;
-
- link = parse_link(media, p, &end);
- if (link == NULL) {
- printf("Unable to parse link\n");
- return -EINVAL;
- }
-
- p = end;
- if (*p++ != '[') {
- printf("Unable to parse link flags\n");
- return -EINVAL;
- }
-
- flags = strtoul(p, &end, 10);
- for (p = end; isspace(*p); p++);
- if (*p++ != ']') {
- printf("Unable to parse link flags\n");
- return -EINVAL;
- }
-
- for (; isspace(*p); p++);
- *endp = (char *)p;
-
- printf("Setting up link %u:%u -> %u:%u [%u]\n",
- link->source->entity->info.id, link->source->index,
- link->sink->entity->info.id, link->sink->index,
- flags);
-
- return media_setup_link(media, link->source, link->sink, flags);
-}
-
-static int setup_links(struct media_device *media, const char *p)
-{
- char *end;
- int ret;
-
- do {
- ret = setup_link(media, p, &end);
- if (ret < 0)
- return ret;
-
- p = end + 1;
- } while (*end == ',');
-
- return *end ? -EINVAL : 0;
-}
-
-/* -----------------------------------------------------------------------------
- * Formats setup
- */
-
-static int parse_format(struct v4l2_mbus_framefmt *format, const char *p, char **endp)
-{
- enum v4l2_mbus_pixelcode code;
- unsigned int width, height;
- char *end;
-
- for (; isspace(*p); ++p);
- for (end = (char *)p; !isspace(*end) && *end != '\0'; ++end);
-
- code = string_to_pixelcode(p, end - p);
- if (code == (enum v4l2_mbus_pixelcode)-1)
- return -EINVAL;
-
- for (p = end; isspace(*p); ++p);
- width = strtoul(p, &end, 10);
- if (*end != 'x')
- return -EINVAL;
-
- p = end + 1;
- height = strtoul(p, &end, 10);
- *endp = end;
-
- memset(format, 0, sizeof(*format));
- format->width = width;
- format->height = height;
- format->code = code;
-
- return 0;
-}
-
-static int parse_crop(struct v4l2_rect *crop, const char *p, char **endp)
-{
- char *end;
-
- if (*p++ != '(')
- return -EINVAL;
-
- crop->left = strtoul(p, &end, 10);
- if (*end != ',')
- return -EINVAL;
-
- p = end + 1;
- crop->top = strtoul(p, &end, 10);
- if (*end++ != ')')
- return -EINVAL;
- if (*end != '/')
- return -EINVAL;
-
- p = end + 1;
- crop->width = strtoul(p, &end, 10);
- if (*end != 'x')
- return -EINVAL;
-
- p = end + 1;
- crop->height = strtoul(p, &end, 10);
- *endp = end;
-
- return 0;
-}
-
-static int parse_frame_interval(struct v4l2_fract *interval, const char *p, char **endp)
-{
- char *end;
-
- for (; isspace(*p); ++p);
-
- interval->numerator = strtoul(p, &end, 10);
-
- for (p = end; isspace(*p); ++p);
- if (*p++ != '/')
- return -EINVAL;
-
- for (; isspace(*p); ++p);
- interval->denominator = strtoul(p, &end, 10);
-
- *endp = end;
- return 0;
-}
-
-static struct media_pad *parse_pad_format(struct media_device *media,
- struct v4l2_mbus_framefmt *format, struct v4l2_rect *crop,
- struct v4l2_fract *interval, const char *p, char **endp)
-{
- struct media_pad *pad;
- char *end;
- int ret;
-
- for (; isspace(*p); ++p);
-
- pad = parse_pad(media, p, &end);
- if (pad == NULL)
- return NULL;
-
- for (p = end; isspace(*p); ++p);
- if (*p++ != '[')
- return NULL;
-
- for (; isspace(*p); ++p);
-
- if (isalnum(*p)) {
- ret = parse_format(format, p, &end);
- if (ret < 0)
- return NULL;
-
- for (p = end; isspace(*p); p++);
- }
-
- if (*p == '(') {
- ret = parse_crop(crop, p, &end);
- if (ret < 0)
- return NULL;
-
- for (p = end; isspace(*p); p++);
- }
-
- if (*p == '@') {
- ret = parse_frame_interval(interval, ++p, &end);
- if (ret < 0)
- return NULL;
-
- for (p = end; isspace(*p); p++);
- }
-
- if (*p != ']')
- return NULL;
-
- *endp = (char *)p + 1;
- return pad;
-}
-
-static int set_format(struct media_pad *pad, struct v4l2_mbus_framefmt *format)
-{
- int ret;
-
- if (format->width == 0 || format->height == 0)
- return 0;
-
- printf("Setting up format %s %ux%u on pad %s/%u\n",
- pixelcode_to_string(format->code), format->width, format->height,
- pad->entity->info.name, pad->index);
-
- ret = v4l2_subdev_set_format(pad->entity, format, pad->index,
- V4L2_SUBDEV_FORMAT_ACTIVE);
- if (ret < 0) {
- printf("Unable to set format: %s (%d)\n", strerror(-ret), ret);
- return ret;
- }
-
- printf("Format set: %s %ux%u\n",
- pixelcode_to_string(format->code), format->width, format->height);
-
- return 0;
-}
-
-static int set_crop(struct media_pad *pad, struct v4l2_rect *crop)
-{
- int ret;
-
- if (crop->left == -1 || crop->top == -1)
- return 0;
-
- printf("Setting up crop rectangle (%u,%u)/%ux%u on pad %s/%u\n",
- crop->left, crop->top, crop->width, crop->height,
- pad->entity->info.name, pad->index);
-
- ret = v4l2_subdev_set_crop(pad->entity, crop, pad->index,
- V4L2_SUBDEV_FORMAT_ACTIVE);
- if (ret < 0) {
- printf("Unable to set crop rectangle: %s (%d)\n", strerror(-ret), ret);
- return ret;
- }
-
- printf("Crop rectangle set: (%u,%u)/%ux%u\n",
- crop->left, crop->top, crop->width, crop->height);
-
- return 0;
-}
-
-static int set_frame_interval(struct media_entity *entity, struct v4l2_fract *interval)
-{
- int ret;
-
- if (interval->numerator == 0)
- return 0;
-
- printf("Setting up frame interval %u/%u on entity %s\n",
- interval->numerator, interval->denominator, entity->info.name);
-
- ret = v4l2_subdev_set_frame_interval(entity, interval);
- if (ret < 0) {
- printf("Unable to set frame interval: %s (%d)", strerror(-ret), ret);
- return ret;
- }
-
- printf("Frame interval set: %u/%u\n",
- interval->numerator, interval->denominator);
-
- return 0;
-}
-
-
-static int setup_format(struct media_device *media, const char *p, char **endp)
-{
- struct v4l2_mbus_framefmt format = { 0, 0, 0 };
- struct media_pad *pad;
- struct v4l2_rect crop = { -1, -1, -1, -1 };
- struct v4l2_fract interval = { 0, 0 };
- unsigned int i;
- char *end;
- int ret;
-
- pad = parse_pad_format(media, &format, &crop, &interval, p, &end);
- if (pad == NULL) {
- printf("Unable to parse format\n");
- return -EINVAL;
- }
-
- if (pad->flags & MEDIA_PAD_FLAG_OUTPUT) {
- ret = set_crop(pad, &crop);
- if (ret < 0)
- return ret;
- }
-
- ret = set_format(pad, &format);
- if (ret < 0)
- return ret;
-
- if (pad->flags & MEDIA_PAD_FLAG_INPUT) {
- ret = set_crop(pad, &crop);
- if (ret < 0)
- return ret;
- }
-
- ret = set_frame_interval(pad->entity, &interval);
- if (ret < 0)
- return ret;
-
-
- /* If the pad is an output pad, automatically set the same format on
- * the remote subdev input pads, if any.
- */
- if (pad->flags & MEDIA_PAD_FLAG_OUTPUT) {
- for (i = 0; i < pad->entity->num_links; ++i) {
- struct media_link *link = &pad->entity->links[i];
- struct v4l2_mbus_framefmt remote_format;
-
- if (!(link->flags & MEDIA_LINK_FLAG_ACTIVE))
- continue;
-
- if (link->source == pad &&
- link->sink->entity->info.type == MEDIA_ENTITY_TYPE_SUBDEV) {
- remote_format = format;
- set_format(link->sink, &remote_format);
- }
- }
- }
-
- *endp = end;
- return 0;
-}
-
-static int setup_formats(struct media_device *media, const char *p)
-{
- char *end;
- int ret;
-
- do {
- ret = setup_format(media, p, &end);
- if (ret < 0)
- return ret;
-
- p = end + 1;
- } while (*end == ',');
-
- return *end ? -EINVAL : 0;
-}
-
-int main(int argc, char **argv)
-{
- struct media_device *media;
- int ret = -1;
-
- if (parse_cmdline(argc, argv))
- return EXIT_FAILURE;
-
- /* Open the media device and enumerate entities, pads and links. */
- media = media_open(media_opts.devname, media_opts.verbose);
- if (media == NULL)
- goto out;
-
- if (media_opts.entity) {
- struct media_entity *entity;
-
- entity = media_get_entity_by_name(media, media_opts.entity,
- strlen(media_opts.entity));
- if (entity == NULL) {
- printf("Entity '%s' not found\n", media_opts.entity);
- goto out;
- }
-
- printf("%s\n", entity->devname);
- }
-
- if (media_opts.pad) {
- struct media_pad *pad;
-
- pad = parse_pad(media, media_opts.pad, NULL);
- if (pad == NULL) {
- printf("Pad '%s' not found\n", media_opts.pad);
- goto out;
- }
-
- v4l2_subdev_print_format(pad->entity, pad->index,
- V4L2_SUBDEV_FORMAT_ACTIVE);
- printf("\n");
- }
-
- if (media_opts.print || media_opts.print_dot) {
- media_print_topology(media, media_opts.print_dot);
- printf("\n");
- }
-
- if (media_opts.reset) {
- printf("Resetting all links to inactive\n");
- media_reset_links(media);
- }
-
- if (media_opts.links)
- setup_links(media, media_opts.links);
-
- if (media_opts.formats)
- setup_formats(media, media_opts.formats);
-
- if (media_opts.interactive) {
- while (1) {
- char buffer[32];
- char *end;
-
- printf("Enter a link to modify or enter to stop\n");
- if (fgets(buffer, sizeof buffer, stdin) == NULL)
- break;
-
- if (buffer[0] == '\n')
- break;
-
- setup_link(media, buffer, &end);
- }
- }
-
- ret = 0;
-
-out:
- if (media)
- media_close(media);
-
- return ret ? EXIT_FAILURE : EXIT_SUCCESS;
-}
-