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ASoC: topology: Support topology file of ABI v4 

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>
hifive-unleashed-5.1
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
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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,