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topology: add snd_tplg_save()

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Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Jaroslav Kysela 2019-12-16 14:26:31 +01:00
parent 4a0efdc873
commit aa1bac2d04
14 changed files with 2165 additions and 260 deletions
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45
src/topology/channel.c
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@ -73,6 +73,18 @@ static int lookup_channel(const char *c)
return -EINVAL;
}
const char *tplg_channel_name(int type)
{
unsigned int i;
for (i = 0; i < ARRAY_SIZE(channel_map); i++) {
if (channel_map[i].id == type)
return channel_map[i].name;
}
return NULL;
}
/* Parse a channel mapping. */
int tplg_parse_channel(snd_tplg_t *tplg, snd_config_t *cfg,
void *private)
@ -123,3 +135,36 @@ int tplg_parse_channel(snd_tplg_t *tplg, snd_config_t *cfg,
tplg->channel_idx++;
return 0;
}
int tplg_save_channels(snd_tplg_t *tplg ATTRIBUTE_UNUSED,
struct snd_soc_tplg_channel *channel,
unsigned int count, char **dst, const char *pfx)
{
struct snd_soc_tplg_channel *c;
const char *s;
unsigned int index;
int err;
if (count == 0)
return 0;
err = tplg_save_printf(dst, pfx, "channel {\n");
for (index = 0; err >= 0 && index < count; index++) {
c = channel + index;
s = tplg_channel_name(c->id);
if (s == NULL)
err = tplg_save_printf(dst, pfx, "\t%u", c->id);
else
err = tplg_save_printf(dst, pfx, "\t%s", s);
if (err >= 0)
err = tplg_save_printf(dst, NULL, " {\n");
if (err >= 0)
err = tplg_save_printf(dst, pfx, "\t\treg %d\n", c->reg);
if (err >= 0 && c->shift > 0)
err = tplg_save_printf(dst, pfx, "\t\tshift %u\n", c->shift);
if (err >= 0)
err = tplg_save_printf(dst, pfx, "\t}\n");
}
if (err >= 0)
err = tplg_save_printf(dst, pfx, "}\n");
return err;
}