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topology: Define new type and section name to configure physical links

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Users may not use DPCM but still need to configure the physical links.
So we should not only consider backend links for DPCM.

- SND_TPLG_TYPE_LINK is defined to configure physical links by C API.
  And SND_TPLG_TYPE_BE is still supported to configure Backend links for
  DPCM cases.

- SectionLink can be used to configure physical links in text conf file.
  And SectionBE is still supported to config Backend links for DPCM cases.

Actually, users can use SND_TPLG_TYPE_LINK and SectionLink to configure
backend links for DPCM cases, because BE links are also physical links.
The parsing is same and we rename the function from tplg_parse_be to
tplg_parse_link.

Signed-off-by: Mengdong Lin <mengdong.lin@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Mengdong Lin 2016-11-06 13:13:36 +08:00 • committed by Takashi Iwai
parent cb9451b8e7
commit f5b275b24c
4 changed files with 29 additions and 10 deletions
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5
src/topology/parser.c
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@ -133,8 +133,9 @@ static int tplg_parse_config(snd_tplg_t *tplg, snd_config_t *cfg)
continue;
}
if (strcmp(id, "SectionBE") == 0) {
err = tplg_parse_compound(tplg, n, tplg_parse_be,
if (strcmp(id, "SectionLink") == 0
|| strcmp(id, "SectionBE") == 0) {
err = tplg_parse_compound(tplg, n, tplg_parse_link,
NULL);
if (err < 0)
return err;