On Thu, 2018-05-03 at 16:51 -0500, Pierre-Louis Bossart wrote:
On 5/3/18 4:44 PM, Ranjani Sridharan wrote:
Add a simple utility that parses topology bin files and creates a graph using the linux dot tool.
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com
topology/Makefile.am | 5 ++ topology/parse_topology.c | 130 ++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 135 insertions(+) create mode 100644 topology/parse_topology.c
diff --git a/topology/Makefile.am b/topology/Makefile.am index 73e10e9..b69dfb4 100644 --- a/topology/Makefile.am +++ b/topology/Makefile.am @@ -59,3 +59,8 @@ EXTRA_DIST = \ sof-cnl-rt274.m4 \ sof-hsw-rt5640.m4 \ sof-apl-tdf8532.m4
+bin_PROGRAMS = tplg_graph
+tplg_graph_SOURCES = \
- parse_topology.c
diff --git a/topology/parse_topology.c b/topology/parse_topology.c new file mode 100644 index 0000000..b54ca77 --- /dev/null +++ b/topology/parse_topology.c @@ -0,0 +1,130 @@ +/*
- Utility for visualizing topology files.
- Copyright (c) 2015, Intel Corporation.
- This program is free software; you can redistribute it and/or
modify it
- under the terms and conditions of the GNU General Public
License,
- version 2, as published by the Free Software Foundation.
- This program is distributed in the hope 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.
why is the copyright from 2015 and the license GPL? Is this coming from some other project?
Sorry, copied it from rmbox. Should I change it to FreeBSD?
- */
+#include <stdio.h> +#include <sound/asoc.h> +#include <string.h> +#include <stdlib.h>
+/*
- The output graph is saved as "tplg.png"
- Usage: ./tplg_graph <tplg file>
- */
+int main(int argc, char **argv) +{
- struct snd_soc_tplg_hdr *hdr;
- struct snd_soc_tplg_dapm_graph_elem *graph_elem;
- char *filename;
- char *dotfilename = "tplg.dot";
- FILE *file, *dotfile;
- char *start = "digraph topology {\n";
- char *node_color = "node [color=Red,fontname=Courier]\n";
- char *edge_color = "edge [color=Blue, style=dashed]\n";
- char *end = "}\n";
- char edge[256];
- int i, status, ret;
- size_t size, file_size;
- /* command line arguments */
- if (argc < 2) {
printf("usage: tplg_graph <tplg file>\n");exit(EXIT_FAILURE);- }
- filename = malloc(strlen(argv[1]));
- strcpy(filename, argv[1]);
- /* open files */
- file = fopen(filename, "rb");
- if (!file) {
fprintf(stderr, "Unable to open file %s",filename);
return -1;- }
- dotfile = fopen(dotfilename, "w");
- if (!dotfile) {
fprintf(stderr, "Unable to open file %s",dotfilename);
return -1;- }
- fwrite(start, strlen(start), 1, dotfile);
- fwrite(node_color, strlen(node_color), 1, dotfile);
- fwrite(edge_color, strlen(edge_color), 1, dotfile);
- /* file size */
- fseek(file, 0, SEEK_END);
- file_size = ftell(file);
- fseek(file, 0, SEEK_SET);
- /* Allocate memory */
- size = sizeof(struct snd_soc_tplg_hdr);
- hdr = (struct snd_soc_tplg_hdr *)malloc(size);
- if (!hdr) {
printf("error: mem alloc\n");return -1;- }
- size = sizeof(struct snd_soc_tplg_dapm_graph_elem);
- graph_elem = (struct snd_soc_tplg_dapm_graph_elem
*)malloc(size);
- if (!graph_elem) {
printf("error: mem alloc\n");return -1;- }
- while (1) {
ret = fread(hdr, sizeof(struct snd_soc_tplg_hdr),1, file);
if (ret != 1)printf("error: reading header\n");switch (hdr->type) {case SND_SOC_TPLG_TYPE_DAPM_GRAPH:size = sizeof(structsnd_soc_tplg_dapm_graph_elem);
/* parse pipeline graph */for (i = 0; i < hdr->count; i++) {ret = fread(graph_elem, size, 1,file);
if (ret != 1)printf("error: readinggraph elem\n");
/* write route to output dot file*/
sprintf(edge, "\"%s\"->\"%s\"\n",graph_elem->source,graph_elem->sink);
fwrite(edge, strlen(edge), 1,dotfile);
fwrite("\n", 1, 1, dotfile);}if (ftell(file) == file_size)goto finish;break;default:fseek(file, hdr->payload_size, SEEK_CUR);if (ftell(file) == file_size)goto finish;break;}- }
+finish:
- fwrite(end, strlen(end), 1, dotfile);
- fclose(dotfile);
- fclose(file);
- free(hdr);
- free(graph_elem);
- /* create topology graph */
- status = system("dot tplg.dot -Tpng -o tplg.png");
+}
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