[PATCH 14/19] ASoC: SOF: Introduce macro to set the firmware state

[Peter Ujfalusi]

Add sof_set_fw_state() macro to wrap the sdev->fw_state management to allow
actions to be taken when certain state is set or when state is changing.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi at linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart at linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen at linux.intel.com>
---
 sound/soc/sof/core.c     |  8 ++++----
 sound/soc/sof/ipc.c      |  4 ++--
 sound/soc/sof/loader.c   |  2 +-
 sound/soc/sof/pm.c       |  6 +++---
 sound/soc/sof/sof-priv.h | 13 +++++++++++++
 5 files changed, 23 insertions(+), 10 deletions(-)

diff --git a/sound/soc/sof/core.c b/sound/soc/sof/core.c
index 2ea29186e397..22a1c5090ae0 100644
--- a/sound/soc/sof/core.c
+++ b/sound/soc/sof/core.c
@@ -147,7 +147,7 @@ static int sof_probe_continue(struct snd_sof_dev *sdev)
 		return ret;
 	}
 
-	sdev->fw_state = SOF_FW_BOOT_PREPARE;
+	sof_set_fw_state(sdev, SOF_FW_BOOT_PREPARE);
 
 	/* check machine info */
 	ret = sof_machine_check(sdev);
@@ -189,7 +189,7 @@ static int sof_probe_continue(struct snd_sof_dev *sdev)
 		goto fw_load_err;
 	}
 
-	sdev->fw_state = SOF_FW_BOOT_IN_PROGRESS;
+	sof_set_fw_state(sdev, SOF_FW_BOOT_IN_PROGRESS);
 
 	/*
 	 * Boot the firmware. The FW boot status will be modified
@@ -265,7 +265,7 @@ static int sof_probe_continue(struct snd_sof_dev *sdev)
 	snd_sof_remove(sdev);
 
 	/* all resources freed, update state to match */
-	sdev->fw_state = SOF_FW_BOOT_NOT_STARTED;
+	sof_set_fw_state(sdev, SOF_FW_BOOT_NOT_STARTED);
 	sdev->first_boot = true;
 
 	return ret;
@@ -300,7 +300,7 @@ int snd_sof_device_probe(struct device *dev, struct snd_sof_pdata *plat_data)
 
 	sdev->pdata = plat_data;
 	sdev->first_boot = true;
-	sdev->fw_state = SOF_FW_BOOT_NOT_STARTED;
+	sof_set_fw_state(sdev, SOF_FW_BOOT_NOT_STARTED);
 #if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_PROBES)
 	sdev->extractor_stream_tag = SOF_PROBE_INVALID_NODE_ID;
 #endif
diff --git a/sound/soc/sof/ipc.c b/sound/soc/sof/ipc.c
index 5c698fa662f4..5a308c62f7ca 100644
--- a/sound/soc/sof/ipc.c
+++ b/sound/soc/sof/ipc.c
@@ -458,9 +458,9 @@ void snd_sof_ipc_msgs_rx(struct snd_sof_dev *sdev)
 		if (sdev->fw_state == SOF_FW_BOOT_IN_PROGRESS) {
 			err = sof_ops(sdev)->fw_ready(sdev, cmd);
 			if (err < 0)
-				sdev->fw_state = SOF_FW_BOOT_READY_FAILED;
+				sof_set_fw_state(sdev, SOF_FW_BOOT_READY_FAILED);
 			else
-				sdev->fw_state = SOF_FW_BOOT_COMPLETE;
+				sof_set_fw_state(sdev, SOF_FW_BOOT_COMPLETE);
 
 			/* wake up firmware loader */
 			wake_up(&sdev->boot_wait);
diff --git a/sound/soc/sof/loader.c b/sound/soc/sof/loader.c
index a0ae174f9bb0..de7082f3226c 100644
--- a/sound/soc/sof/loader.c
+++ b/sound/soc/sof/loader.c
@@ -838,7 +838,7 @@ int snd_sof_run_firmware(struct snd_sof_dev *sdev)
 		dev_err(sdev->dev, "error: firmware boot failure\n");
 		snd_sof_dsp_dbg_dump(sdev, SOF_DBG_DUMP_REGS | SOF_DBG_DUMP_MBOX |
 				     SOF_DBG_DUMP_TEXT | SOF_DBG_DUMP_PCI);
-		sdev->fw_state = SOF_FW_BOOT_FAILED;
+		sof_set_fw_state(sdev, SOF_FW_BOOT_FAILED);
 		return -EIO;
 	}
 
diff --git a/sound/soc/sof/pm.c b/sound/soc/sof/pm.c
index 77a3496d3dbd..bf759bfa305e 100644
--- a/sound/soc/sof/pm.c
+++ b/sound/soc/sof/pm.c
@@ -122,7 +122,7 @@ static int sof_resume(struct device *dev, bool runtime_resume)
 	    old_state == SOF_DSP_PM_D0)
 		return 0;
 
-	sdev->fw_state = SOF_FW_BOOT_PREPARE;
+	sof_set_fw_state(sdev, SOF_FW_BOOT_PREPARE);
 
 	/* load the firmware */
 	ret = snd_sof_load_firmware(sdev);
@@ -133,7 +133,7 @@ static int sof_resume(struct device *dev, bool runtime_resume)
 		return ret;
 	}
 
-	sdev->fw_state = SOF_FW_BOOT_IN_PROGRESS;
+	sof_set_fw_state(sdev, SOF_FW_BOOT_IN_PROGRESS);
 
 	/*
 	 * Boot the firmware. The FW boot status will be modified
@@ -257,7 +257,7 @@ static int sof_suspend(struct device *dev, bool runtime_suspend)
 		return ret;
 
 	/* reset FW state */
-	sdev->fw_state = SOF_FW_BOOT_NOT_STARTED;
+	sof_set_fw_state(sdev, SOF_FW_BOOT_NOT_STARTED);
 	sdev->enabled_cores_mask = 0;
 
 	return ret;
diff --git a/sound/soc/sof/sof-priv.h b/sound/soc/sof/sof-priv.h
index 5c1939339936..d9525f3ff5cd 100644
--- a/sound/soc/sof/sof-priv.h
+++ b/sound/soc/sof/sof-priv.h
@@ -561,6 +561,19 @@ static inline void sof_oops(struct snd_sof_dev *sdev, void *oops)
 
 extern const struct dsp_arch_ops sof_xtensa_arch_ops;
 
+/*
+ * Firmware state tracking
+ */
+static inline void sof_set_fw_state(struct snd_sof_dev *sdev,
+				    enum snd_sof_fw_state new_state)
+{
+	if (sdev->fw_state == new_state)
+		return;
+
+	dev_dbg(sdev->dev, "fw_state change: %d -> %d\n", sdev->fw_state, new_state);
+	sdev->fw_state = new_state;
+}
+
 /*
  * Utilities
  */
-- 
2.33.0