ASoC: SOF: add INTEL_IPC4 plumbing

Merge series from Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>:

The INTEL_IPC4 protocol and firmware architecture will rely on
different sets of firmware binary and topology files. Some platforms
will only support INTEL_IPC4, some will support both INTEL_IPC4 and
SOF_IPC for development, and some will stay with the existing SOF_IPC.

This patchset adds new IPC definitions, and search paths for firmware
and topology files, along with means to override the default IPC type
and search paths for development. The firmware binary names are
aligned with those used by the Intel AVS driver to avoid duplicate
firmware installs, but the topology will have to differ due to driver
architecture differences.

1 files changed, 38 insertions, 9 deletions

diff --git a/sound/soc/sof/sof-pci-dev.c b/sound/soc/sof/sof-pci-dev.c
index 12f5cff22448..4d1b7e4ccd3d 100644
--- a/sound/soc/sof/sof-pci-dev.c
+++ b/sound/soc/sof/sof-pci-dev.c
@@ -23,21 +23,29 @@ static char *fw_path;
 module_param(fw_path, charp, 0444);
 MODULE_PARM_DESC(fw_path, "alternate path for SOF firmware.");
 
+static char *fw_filename;
+module_param(fw_filename, charp, 0444);
+MODULE_PARM_DESC(fw_filename, "alternate filename for SOF firmware.");
+
 static char *tplg_path;
 module_param(tplg_path, charp, 0444);
 MODULE_PARM_DESC(tplg_path, "alternate path for SOF topology.");
 
+static char *tplg_filename;
+module_param(tplg_filename, charp, 0444);
+MODULE_PARM_DESC(tplg_filename, "alternate filename for SOF topology.");
+
 static int sof_pci_debug;
 module_param_named(sof_pci_debug, sof_pci_debug, int, 0444);
 MODULE_PARM_DESC(sof_pci_debug, "SOF PCI debug options (0x0 all off)");
 
-static const char *sof_override_tplg_name;
+static const char *sof_dmi_override_tplg_name;
 
 #define SOF_PCI_DISABLE_PM_RUNTIME BIT(0)
 
 static int sof_tplg_cb(const struct dmi_system_id *id)
 {
-	sof_override_tplg_name = id->driver_data;
+	sof_dmi_override_tplg_name = id->driver_data;
 	return 1;
 }
 
@@ -173,7 +181,17 @@ int sof_pci_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
 	sof_pdata->name = pci_name(pci);
 	sof_pdata->desc = desc;
 	sof_pdata->dev = dev;
-	sof_pdata->fw_filename = desc->default_fw_filename;
+
+	sof_pdata->ipc_type = desc->ipc_default;
+
+	if (fw_filename) {
+		sof_pdata->fw_filename = fw_filename;
+
+		dev_dbg(dev, "Module parameter used, changed fw filename to %s\n",
+			sof_pdata->fw_filename);
+	} else {
+		sof_pdata->fw_filename = desc->default_fw_filename[sof_pdata->ipc_type];
+	}
 
 	/*
 	 * for platforms using the SOF community key, change the
@@ -193,7 +211,7 @@ int sof_pci_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
 	} else if (dmi_check_system(community_key_platforms)) {
 		sof_pdata->fw_filename_prefix =
 			devm_kasprintf(dev, GFP_KERNEL, "%s/%s",
-				       sof_pdata->desc->default_fw_path,
+				       sof_pdata->desc->default_fw_path[sof_pdata->ipc_type],
 				       "community");
 
 		dev_dbg(dev,
@@ -201,18 +219,29 @@ int sof_pci_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
 			sof_pdata->fw_filename_prefix);
 	} else {
 		sof_pdata->fw_filename_prefix =
-			sof_pdata->desc->default_fw_path;
+			sof_pdata->desc->default_fw_path[sof_pdata->ipc_type];
 	}
 
 	if (tplg_path)
 		sof_pdata->tplg_filename_prefix = tplg_path;
 	else
 		sof_pdata->tplg_filename_prefix =
-			sof_pdata->desc->default_tplg_path;
+			sof_pdata->desc->default_tplg_path[sof_pdata->ipc_type];
+
+	/*
+	 * the topology filename will be provided in the machine descriptor, unless
+	 * it is overridden by a module parameter or DMI quirk.
+	 */
+	if (tplg_filename) {
+		sof_pdata->tplg_filename = tplg_filename;
 
-	dmi_check_system(sof_tplg_table);
-	if (sof_override_tplg_name)
-		sof_pdata->tplg_filename = sof_override_tplg_name;
+		dev_dbg(dev, "Module parameter used, changed tplg filename to %s\n",
+			sof_pdata->tplg_filename);
+	} else {
+		dmi_check_system(sof_tplg_table);
+		if (sof_dmi_override_tplg_name)
+			sof_pdata->tplg_filename = sof_dmi_override_tplg_name;
+	}
 
 	/* set callback to be called on successful device probe to enable runtime_pm */
 	sof_pdata->sof_probe_complete = sof_pci_probe_complete;