From: Karol Trzcinski <karolx.trzcinski@xxxxxxxxxxxxxxx>
The firmware version can be extracted from the extended
manifest content. This information known at build time
does not need to be provided in a mailbox.
Signed-off-by: Karol Trzcinski <karolx.trzcinski@xxxxxxxxxxxxxxx>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@xxxxxxxxxxxxxxx>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@xxxxxxxxxxxxxxx>
Signed-off-by: Kai Vehmanen <kai.vehmanen@xxxxxxxxxxxxxxx>
---
include/sound/sof/ext_manifest.h | 14 ++++++++++++++
sound/soc/sof/loader.c | 16 ++++++++++++++++
2 files changed, 30 insertions(+)
diff --git a/include/sound/sof/ext_manifest.h b/include/sound/sof/ext_manifest.h
index 5c1f03603919..6ed787eb788c 100644
--- a/include/sound/sof/ext_manifest.h
+++ b/include/sound/sof/ext_manifest.h
@@ -19,6 +19,7 @@
#include <linux/bits.h>
#include <linux/compiler.h>
#include <linux/types.h>
+#include <sound/sof/info.h>
/* In ASCII `XMan` */
#define SOF_EXT_MAN_MAGIC_NUMBER 0x6e614d58
@@ -54,6 +55,11 @@ struct sof_ext_man_header {
/* Now define extended manifest elements */
+/* Extended manifest elements types */
+enum sof_ext_man_elem_type {
+ SOF_EXT_MAN_ELEM_FW_VERSION = 0,
+};
+
/* extended manifest element header */
struct sof_ext_man_elem_header {
uint32_t type; /*< SOF_EXT_MAN_ELEM_ */
@@ -62,4 +68,12 @@ struct sof_ext_man_elem_header {
/* just after this header should be type dependent content */
} __packed;
+/* FW version */
+struct sof_ext_man_fw_version {
+ struct sof_ext_man_elem_header hdr;
+ /* use sof_ipc struct because of code re-use */
+ struct sof_ipc_fw_version version;
+ uint32_t flags;
+} __packed;
+
#endif /* __SOF_FIRMWARE_EXT_MANIFEST_H__ */
diff --git a/sound/soc/sof/loader.c b/sound/soc/sof/loader.c
index a2c2dc17e9ab..8b42613304a7 100644
--- a/sound/soc/sof/loader.c
+++ b/sound/soc/sof/loader.c
@@ -127,6 +127,19 @@ int snd_sof_fw_parse_ext_data(struct snd_sof_dev *sdev, u32 bar, u32 offset)
}
EXPORT_SYMBOL(snd_sof_fw_parse_ext_data);
+static int ext_man_get_fw_version(struct snd_sof_dev *sdev,
+ const struct sof_ext_man_elem_header *hdr)
+{
+ const struct sof_ext_man_fw_version *v =
+ container_of(hdr, struct sof_ext_man_fw_version, hdr);
+
+ memcpy(&sdev->fw_ready.version, &v->version, sizeof(v->version));
+ sdev->fw_ready.flags = v->flags;
+
+ /* log ABI versions and check FW compatibility */
+ return snd_sof_ipc_valid(sdev);
+}
+
static ssize_t snd_sof_ext_man_size(const struct firmware *fw)
{
const struct sof_ext_man_header *head;
@@ -197,6 +210,9 @@ static int snd_sof_fw_ext_man_parse(struct snd_sof_dev *sdev,
/* process structure data */
switch (elem_hdr->type) {
+ case SOF_EXT_MAN_ELEM_FW_VERSION:
+ ret = ext_man_get_fw_version(sdev, elem_hdr);
+ break;
default:
dev_warn(sdev->dev, "warning: unknown sof_ext_man header type %d size 0x%X\n",
elem_hdr->type, elem_hdr->size);
--
2.26.2
