From: Rander Wang rander.wang@intel.com
FW can share some information with host driver, .e.g fw status, pipeline status and volume status. On ipc4 platform it is located in memory windows 0 with size of struct sof_ipc4_fw_reg.
With this patch, ipc4 driver can find fw information in fw_info_box
Signed-off-by: Rander Wang rander.wang@intel.com Reviewed-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Reviewed-by: Ranjani Sridharan ranjani.sridharan@linux.intel.com Reviewed-by: Bard Liao yung-chuan.liao@linux.intel.com Signed-off-by: Peter Ujfalusi peter.ujfalusi@linux.intel.com --- sound/soc/sof/ipc4-priv.h | 1 + sound/soc/sof/ipc4.c | 3 +++ sound/soc/sof/sof-priv.h | 1 + 3 files changed, 5 insertions(+)
diff --git a/sound/soc/sof/ipc4-priv.h b/sound/soc/sof/ipc4-priv.h index 38bb3d7df42e..8f8259a7e21c 100644 --- a/sound/soc/sof/ipc4-priv.h +++ b/sound/soc/sof/ipc4-priv.h @@ -14,6 +14,7 @@ #include "sof-priv.h"
/* The DSP window indices are fixed */ +#define SOF_IPC4_INBOX_WINDOW_IDX 0 #define SOF_IPC4_OUTBOX_WINDOW_IDX 1 #define SOF_IPC4_DEBUG_WINDOW_IDX 2
diff --git a/sound/soc/sof/ipc4.c b/sound/soc/sof/ipc4.c index 35c9f3913d9a..f3c0c839d177 100644 --- a/sound/soc/sof/ipc4.c +++ b/sound/soc/sof/ipc4.c @@ -13,6 +13,7 @@ #include <sound/sof/ipc4/header.h> #include "sof-priv.h" #include "sof-audio.h" +#include "ipc4-fw-reg.h" #include "ipc4-priv.h" #include "ops.h"
@@ -542,6 +543,8 @@ static int ipc4_fw_ready(struct snd_sof_dev *sdev, struct sof_ipc4_msg *ipc4_msg outbox_offset = snd_sof_dsp_get_window_offset(sdev, SOF_IPC4_OUTBOX_WINDOW_IDX); outbox_size = SOF_IPC4_MSG_MAX_SIZE;
+ sdev->fw_info_box.offset = snd_sof_dsp_get_window_offset(sdev, SOF_IPC4_INBOX_WINDOW_IDX); + sdev->fw_info_box.size = sizeof(struct sof_ipc4_fw_registers); sdev->dsp_box.offset = inbox_offset; sdev->dsp_box.size = inbox_size; sdev->host_box.offset = outbox_offset; diff --git a/sound/soc/sof/sof-priv.h b/sound/soc/sof/sof-priv.h index 208a30ff3db9..fd1c3b17a396 100644 --- a/sound/soc/sof/sof-priv.h +++ b/sound/soc/sof/sof-priv.h @@ -548,6 +548,7 @@ struct snd_sof_dev {
/* IPC */ struct snd_sof_ipc *ipc; + struct snd_sof_mailbox fw_info_box; /* FW shared memory */ struct snd_sof_mailbox dsp_box; /* DSP initiated IPC */ struct snd_sof_mailbox host_box; /* Host initiated IPC */ struct snd_sof_mailbox stream_box; /* Stream position update */