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Quick instructions are added in INSTALL.
Application source files are moved to src subdirectory.

Signed-off-by: Todor Tomov <ttomov@mm-sol.com>

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;
-}
-