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ASoC: topology: Support topology file of ABI v4

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Users start to use topology ABI from v4. ABI v5 updated existing manifest
and PCM elements. Two previous patches can support these ABI updates in a
backward compatible way. So if the topology file from user space is
generated by ABI v4, kernel will no longer quit but continue parsing.

Signed-off-by: Mengdong Lin <mengdong.lin@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Mengdong Lin 2016-11-03 01:03:17 +08:00 committed by Mark Brown
parent 8f27c4abc2
commit 288b8da7e9
2 changed files with 5 additions and 2 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

3
include/uapi/sound/asoc.h
View file

@ -83,7 +83,8 @@
#define SND_SOC_TPLG_NUM_TEXTS 16
/* ABI version */
#define SND_SOC_TPLG_ABI_VERSION 0x5
#define SND_SOC_TPLG_ABI_VERSION 0x5 /* current version */
#define SND_SOC_TPLG_ABI_VERSION_MIN 0x4 /* oldest version supported */
/* Max size of TLV data */
#define SND_SOC_TPLG_TLV_SIZE 32

4
sound/soc/soc-topology.c
View file

@ -2056,7 +2056,9 @@ static int soc_valid_header(struct soc_tplg *tplg,
return -EINVAL;
}
if (hdr->abi != SND_SOC_TPLG_ABI_VERSION) {
/* Support ABI from version 4 */
if (hdr->abi > SND_SOC_TPLG_ABI_VERSION
|| hdr->abi < SND_SOC_TPLG_ABI_VERSION_MIN) {
dev_err(tplg->dev,
"ASoC: pass %d invalid ABI version got 0x%x need 0x%x at offset 0x%lx size 0x%zx.\n",
tplg->pass, hdr->abi,