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ASoC: SOF: ext_manifest: parse windows

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The window description 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@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20200415202816.934-7-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Karol Trzcinski 2020-04-15 15:27:58 -05:00 committed by Mark Brown
parent 3710914178
commit 9e72f13ee5
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
2 changed files with 34 additions and 2 deletions
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9
include/uapi/sound/sof/ext_manifest.h
View File

@ -17,6 +17,7 @@
#define __SOF_FIRMWARE_EXT_MANIFEST_H__
#include <linux/const.h>
#include <sound/sof/info.h>
/* In ASCII `XMan` */
#define SOF_EXT_MAN_MAGIC_NUMBER 0x6e614d58
@ -54,6 +55,7 @@ struct sof_ext_man_header {
/* Extended manifest elements types */
enum sof_ext_man_elem_type {
SOF_EXT_MAN_ELEM_FW_VERSION = 0,
SOF_EXT_MAN_ELEM_WINDOW = SOF_IPC_EXT_WINDOW,
};
/* extended manifest element header */
@ -71,4 +73,11 @@ struct sof_ext_man_fw_version {
uint32_t flags;
} __packed;
/* extended data memory windows for IPC, trace and debug */
struct sof_ext_man_window {
struct sof_ext_man_elem_header hdr;
/* use sof_ipc struct because of code re-use */
struct sof_ipc_window ipc_window;
} __packed;
#endif /* __SOF_FIRMWARE_EXT_MANIFEST_H__ */

27
sound/soc/sof/loader.c
View File

@ -20,13 +20,21 @@ static int get_ext_windows(struct snd_sof_dev *sdev,
{
const struct sof_ipc_window *w =
container_of(ext_hdr, struct sof_ipc_window, ext_hdr);
size_t w_size = struct_size(w, window, w->num_windows);
if (sdev->info_window) {
if (memcmp(sdev->info_window, w, w_size)) {
dev_err(sdev->dev, "error: mistmatch between window descriptor from extended manifest and mailbox");
return -EINVAL;
}
return 0;
}
if (w->num_windows == 0 || w->num_windows > SOF_IPC_MAX_ELEMS)
return -EINVAL;
/* keep a local copy of the data */
sdev->info_window = kmemdup(w, struct_size(w, window, w->num_windows),
GFP_KERNEL);
sdev->info_window = kmemdup(w, w_size, GFP_KERNEL);
if (!sdev->info_window)
return -ENOMEM;
@ -141,6 +149,18 @@ static int ext_man_get_fw_version(struct snd_sof_dev *sdev,
return snd_sof_ipc_valid(sdev);
}
static int ext_man_get_windows(struct snd_sof_dev *sdev,
const struct sof_ext_man_elem_header *hdr)
{
const struct sof_ipc_ext_data_hdr *w_ipc;
const struct sof_ext_man_window *w;
w = container_of(hdr, struct sof_ext_man_window, hdr);
w_ipc = (const struct sof_ipc_ext_data_hdr *)&w->ipc_window;
return get_ext_windows(sdev, w_ipc);
}
static ssize_t snd_sof_ext_man_size(const struct firmware *fw)
{
const struct sof_ext_man_header *head = (void *)fw->data;
@ -218,6 +238,9 @@ static int snd_sof_fw_ext_man_parse(struct snd_sof_dev *sdev,
case SOF_EXT_MAN_ELEM_FW_VERSION:
ret = ext_man_get_fw_version(sdev, elem_hdr);
break;
case SOF_EXT_MAN_ELEM_WINDOW:
ret = ext_man_get_windows(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);