ASoC: SOF: debug: Print out the fw_state along with the DSP dump

The fw state can be an important information along with the DSP dump.
Print it out before the dump.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20211006110645.26679-12-peter.ujfalusi@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sof/debug.c

@@ -822,6 +822,32 @@ void snd_sof_free_debug(struct snd_sof_dev *sdev)
 }
 EXPORT_SYMBOL_GPL(snd_sof_free_debug);
 
+static const struct soc_fw_state_info {
+	enum snd_sof_fw_state state;
+	const char *name;
+} fw_state_dbg[] = {
+	{SOF_FW_BOOT_NOT_STARTED, "SOF_FW_BOOT_NOT_STARTED"},
+	{SOF_FW_BOOT_PREPARE, "SOF_FW_BOOT_PREPARE"},
+	{SOF_FW_BOOT_IN_PROGRESS, "SOF_FW_BOOT_IN_PROGRESS"},
+	{SOF_FW_BOOT_FAILED, "SOF_FW_BOOT_FAILED"},
+	{SOF_FW_BOOT_READY_FAILED, "SOF_FW_BOOT_READY_FAILED"},
+	{SOF_FW_BOOT_COMPLETE, "SOF_FW_BOOT_COMPLETE"},
+};
+
+static void snd_sof_dbg_print_fw_state(struct snd_sof_dev *sdev)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(fw_state_dbg); i++) {
+		if (sdev->fw_state == fw_state_dbg[i].state) {
+			dev_err(sdev->dev, "fw_state: %s (%d)\n", fw_state_dbg[i].name, i);
+			return;
+		}
+	}
+
+	dev_err(sdev->dev, "fw_state: UNKNOWN (%d)\n", sdev->fw_state);
+}
+
 void snd_sof_dsp_dbg_dump(struct snd_sof_dev *sdev, u32 flags)
 {
 	bool print_all = !!(sof_core_debug & SOF_DBG_PRINT_ALL_DUMPS);
@@ -831,6 +857,7 @@ void snd_sof_dsp_dbg_dump(struct snd_sof_dev *sdev, u32 flags)
 
 	if (sof_ops(sdev)->dbg_dump && !sdev->dbg_dump_printed) {
 		dev_err(sdev->dev, "------------[ DSP dump start ]------------\n");
+		snd_sof_dbg_print_fw_state(sdev);
 		sof_ops(sdev)->dbg_dump(sdev, flags);
 		dev_err(sdev->dev, "------------[ DSP dump end ]------------\n");
 		if (!print_all)