sound/soc/sof/fw-file-profile.c - linux/kernel/git/will/linux - Git at Google

 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
 //
 // This file is provided under a dual BSD/GPLv2 license.  When using or
 // redistributing this file, you may do so under either license.
 //
 // Copyright(c) 2023 Intel Corporation. All rights reserved.
 //

 #include <linux/firmware.h>
 #include <sound/sof.h>
 #include <sound/sof/ext_manifest4.h>
 #include "sof-priv.h"

 static int sof_test_firmware_file(struct device *dev,
 				  struct sof_loadable_file_profile *profile,
 				  enum sof_ipc_type *ipc_type_to_adjust)
 {
 	enum sof_ipc_type fw_ipc_type;
 	const struct firmware *fw;
 	const char *fw_filename;
 	const u32 *magic;
 	int ret;

 	fw_filename = kasprintf(GFP_KERNEL, "%s/%s", profile->fw_path,
 				profile->fw_name);
 	if (!fw_filename)
 		return -ENOMEM;

 	ret = firmware_request_nowarn(&fw, fw_filename, dev);
 	if (ret < 0) {
 		dev_dbg(dev, "Failed to open firmware file: %s\n", fw_filename);
 		kfree(fw_filename);
 		return ret;
 	}

 	/* firmware file exists, check the magic number */
 	magic = (const u32 *)fw->data;
 	switch (*magic) {
 	case SOF_EXT_MAN_MAGIC_NUMBER:
 		fw_ipc_type = SOF_IPC_TYPE_3;
 		break;
 	case SOF_EXT_MAN4_MAGIC_NUMBER:
 		fw_ipc_type = SOF_IPC_TYPE_4;
 		break;
 	default:
 		dev_err(dev, "Invalid firmware magic: %#x\n", *magic);
 		ret = -EINVAL;
 		goto out;
 	}

 	if (ipc_type_to_adjust) {
 		*ipc_type_to_adjust = fw_ipc_type;
 	} else if (fw_ipc_type != profile->ipc_type) {
 		dev_err(dev,
 			"ipc type mismatch between %s and expected: %d vs %d\n",
 			fw_filename, fw_ipc_type, profile->ipc_type);
 		ret = -EINVAL;
 	}
 out:
 	release_firmware(fw);
 	kfree(fw_filename);

 	return ret;
 }

 static int sof_test_topology_file(struct device *dev,
 				  struct sof_loadable_file_profile *profile)
 {
 	const struct firmware *fw;
 	const char *tplg_filename;
 	int ret;

 	if (!profile->tplg_path || !profile->tplg_name)
 		return 0;

 	tplg_filename = kasprintf(GFP_KERNEL, "%s/%s", profile->tplg_path,
 				  profile->tplg_name);
 	if (!tplg_filename)
 		return -ENOMEM;

 	ret = firmware_request_nowarn(&fw, tplg_filename, dev);
 	if (!ret)
 		release_firmware(fw);
 	else
 		dev_dbg(dev, "Failed to open topology file: %s\n", tplg_filename);

 	kfree(tplg_filename);

 	return ret;
 }

 static bool sof_platform_uses_generic_loader(struct snd_sof_dev *sdev)
 {
 	return (sdev->pdata->desc->ops->load_firmware == snd_sof_load_firmware_raw ||
 		sdev->pdata->desc->ops->load_firmware == snd_sof_load_firmware_memcpy);
 }

 static int
 sof_file_profile_for_ipc_type(struct snd_sof_dev *sdev,
 			      enum sof_ipc_type ipc_type,
 			      const struct sof_dev_desc *desc,
 			      struct sof_loadable_file_profile *base_profile,
 			      struct sof_loadable_file_profile *out_profile)
 {
 	struct snd_sof_pdata *plat_data = sdev->pdata;
 	bool fw_lib_path_allocated = false;
 	struct device *dev = sdev->dev;
 	bool fw_path_allocated = false;
 	int ret = 0;

 	/* firmware path */
 	if (base_profile->fw_path) {
 		out_profile->fw_path = base_profile->fw_path;
 	} else if (base_profile->fw_path_postfix) {
 		out_profile->fw_path = devm_kasprintf(dev, GFP_KERNEL, "%s/%s",
 							desc->default_fw_path[ipc_type],
 							base_profile->fw_path_postfix);
 		if (!out_profile->fw_path)
 			return -ENOMEM;

 		fw_path_allocated = true;
 	} else {
 		out_profile->fw_path = desc->default_fw_path[ipc_type];
 	}

 	/* firmware filename */
 	if (base_profile->fw_name)
 		out_profile->fw_name = base_profile->fw_name;
 	else
 		out_profile->fw_name = desc->default_fw_filename[ipc_type];

 	/*
 	 * Check the custom firmware path/filename and adjust the ipc_type to
 	 * match with the existing file for the remaining path configuration.
 	 *
 	 * For default path and firmware name do a verification before
 	 * continuing further.
 	 */
 	if ((base_profile->fw_path || base_profile->fw_name) &&
 	    sof_platform_uses_generic_loader(sdev)) {
 		ret = sof_test_firmware_file(dev, out_profile, &ipc_type);
 		if (ret)
 			return ret;

 		if (!(desc->ipc_supported_mask & BIT(ipc_type))) {
 			dev_err(dev, "Unsupported IPC type %d needed by %s/%s\n",
 				ipc_type, out_profile->fw_path,
 				out_profile->fw_name);
 			return -EINVAL;
 		}
 	}

 	/* firmware library path */
 	if (base_profile->fw_lib_path) {
 		out_profile->fw_lib_path = base_profile->fw_lib_path;
 	} else if (desc->default_lib_path[ipc_type]) {
 		if (base_profile->fw_lib_path_postfix) {
 			out_profile->fw_lib_path = devm_kasprintf(dev,
 							GFP_KERNEL, "%s/%s",
 							desc->default_lib_path[ipc_type],
 							base_profile->fw_lib_path_postfix);
 			if (!out_profile->fw_lib_path) {
 				ret = -ENOMEM;
 				goto out;
 			}

 			fw_lib_path_allocated = true;
 		} else {
 			out_profile->fw_lib_path = desc->default_lib_path[ipc_type];
 		}
 	}

 	if (base_profile->fw_path_postfix)
 		out_profile->fw_path_postfix = base_profile->fw_path_postfix;

 	if (base_profile->fw_lib_path_postfix)
 		out_profile->fw_lib_path_postfix = base_profile->fw_lib_path_postfix;

 	/* topology path */
 	if (base_profile->tplg_path)
 		out_profile->tplg_path = base_profile->tplg_path;
 	else
 		out_profile->tplg_path = desc->default_tplg_path[ipc_type];

 	/* topology name */
 	out_profile->tplg_name = plat_data->tplg_filename;

 	out_profile->ipc_type = ipc_type;

 	/* Test only default firmware file */
 	if ((!base_profile->fw_path && !base_profile->fw_name) &&
 	    sof_platform_uses_generic_loader(sdev))
 		ret = sof_test_firmware_file(dev, out_profile, NULL);

 	if (!ret)
 		ret = sof_test_topology_file(dev, out_profile);

 out:
 	if (ret) {
 		/* Free up path strings created with devm_kasprintf */
 		if (fw_path_allocated)
 			devm_kfree(dev, out_profile->fw_path);
 		if (fw_lib_path_allocated)
 			devm_kfree(dev, out_profile->fw_lib_path);

 		memset(out_profile, 0, sizeof(*out_profile));
 	}

 	return ret;
 }

 static void
 sof_print_missing_firmware_info(struct snd_sof_dev *sdev,
 				enum sof_ipc_type ipc_type,
 				struct sof_loadable_file_profile *base_profile)
 {
 	struct snd_sof_pdata *plat_data = sdev->pdata;
 	const struct sof_dev_desc *desc = plat_data->desc;
 	struct device *dev = sdev->dev;
 	int ipc_type_count, i;
 	char *marker;

 	dev_err(dev, "SOF firmware and/or topology file not found.\n");
 	dev_info(dev, "Supported default profiles\n");

 	if (IS_ENABLED(CONFIG_SND_SOC_SOF_ALLOW_FALLBACK_TO_NEWER_IPC_VERSION))
 		ipc_type_count = SOF_IPC_TYPE_COUNT - 1;
 	else
 		ipc_type_count = base_profile->ipc_type;

 	for (i = 0; i <= ipc_type_count; i++) {
 		if (!(desc->ipc_supported_mask & BIT(i)))
 			continue;

 		if (i == ipc_type)
 			marker = "Requested";
 		else
 			marker = "Fallback";

 		dev_info(dev, "- ipc type %d (%s):\n", i, marker);
 		if (base_profile->fw_path_postfix)
 			dev_info(dev, " Firmware file: %s/%s/%s\n",
 				 desc->default_fw_path[i],
 				 base_profile->fw_path_postfix,
 				 desc->default_fw_filename[i]);
 		else
 			dev_info(dev, " Firmware file: %s/%s\n",
 				 desc->default_fw_path[i],
 				 desc->default_fw_filename[i]);

 		dev_info(dev, " Topology file: %s/%s\n",
 			 desc->default_tplg_path[i],
 			 plat_data->tplg_filename);
 	}

 	if (base_profile->fw_path || base_profile->fw_name ||
 	    base_profile->tplg_path || base_profile->tplg_name)
 		dev_info(dev, "Verify the path/name override module parameters.\n");

 	dev_info(dev, "Check if you have 'sof-firmware' package installed.\n");
 	dev_info(dev, "Optionally it can be manually downloaded from:\n");
 	dev_info(dev, "   https://github.com/thesofproject/sof-bin/\n");
 }

 static void sof_print_profile_info(struct snd_sof_dev *sdev,
 				   enum sof_ipc_type ipc_type,
 				   struct sof_loadable_file_profile *profile)
 {
 	struct device *dev = sdev->dev;

 	if (ipc_type != profile->ipc_type)
 		dev_info(dev,
 			 "Using fallback IPC type %d (requested type was %d)\n",
 			 profile->ipc_type, ipc_type);

 	dev_info(dev, "Firmware paths/files for ipc type %d:\n", profile->ipc_type);

 	/* The firmware path is only valid when generic loader is used */
 	if (sof_platform_uses_generic_loader(sdev))
 		dev_info(dev, " Firmware file:     %s/%s\n",
 			 profile->fw_path, profile->fw_name);

 	if (profile->fw_lib_path)
 		dev_info(dev, " Firmware lib path: %s\n", profile->fw_lib_path);
 	dev_info(dev, " Topology file:     %s/%s\n", profile->tplg_path, profile->tplg_name);
 }

 int sof_create_ipc_file_profile(struct snd_sof_dev *sdev,
 				struct sof_loadable_file_profile *base_profile,
 				struct sof_loadable_file_profile *out_profile)
 {
 	const struct sof_dev_desc *desc = sdev->pdata->desc;
 	int ipc_fallback_start, ret, i;

 	memset(out_profile, 0, sizeof(*out_profile));

 	ret = sof_file_profile_for_ipc_type(sdev, base_profile->ipc_type, desc,
 					    base_profile, out_profile);
 	if (!ret)
 		goto out;

 	/*
 	 * No firmware file was found for the requested IPC type, as fallback
 	 * if SND_SOC_SOF_ALLOW_FALLBACK_TO_NEWER_IPC_VERSION is selected, check
 	 * all IPC versions in a backwards direction (from newer to older)
 	 * if SND_SOC_SOF_ALLOW_FALLBACK_TO_NEWER_IPC_VERSION is not selected,
 	 * check only older IPC versions than the selected/default version
 	 */
 	if (IS_ENABLED(CONFIG_SND_SOC_SOF_ALLOW_FALLBACK_TO_NEWER_IPC_VERSION))
 		ipc_fallback_start = SOF_IPC_TYPE_COUNT - 1;
 	else
 		ipc_fallback_start = (int)base_profile->ipc_type - 1;

 	for (i = ipc_fallback_start; i >= 0 ; i--) {
 		if (i == base_profile->ipc_type ||
 		    !(desc->ipc_supported_mask & BIT(i)))
 			continue;

 		ret = sof_file_profile_for_ipc_type(sdev, i, desc, base_profile,
 						    out_profile);
 		if (!ret)
 			break;
 	}

 out:
 	if (ret)
 		sof_print_missing_firmware_info(sdev, base_profile->ipc_type,
 						base_profile);
 	else
 		sof_print_profile_info(sdev, base_profile->ipc_type, out_profile);

 	return ret;
 }
 EXPORT_SYMBOL(sof_create_ipc_file_profile);
	// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
	//
	// This file is provided under a dual BSD/GPLv2 license. When using or
	// redistributing this file, you may do so under either license.
	//
	// Copyright(c) 2023 Intel Corporation. All rights reserved.
	//

	#include <linux/firmware.h>
	#include <sound/sof.h>
	#include <sound/sof/ext_manifest4.h>
	#include "sof-priv.h"

	static int sof_test_firmware_file(struct device *dev,
	struct sof_loadable_file_profile *profile,
	enum sof_ipc_type *ipc_type_to_adjust)
	{
	enum sof_ipc_type fw_ipc_type;
	const struct firmware *fw;
	const char *fw_filename;
	const u32 *magic;
	int ret;

	fw_filename = kasprintf(GFP_KERNEL, "%s/%s", profile->fw_path,
	profile->fw_name);
	if (!fw_filename)
	return -ENOMEM;

	ret = firmware_request_nowarn(&fw, fw_filename, dev);
	if (ret < 0) {
	dev_dbg(dev, "Failed to open firmware file: %s\n", fw_filename);
	kfree(fw_filename);
	return ret;
	}

	/* firmware file exists, check the magic number */
	magic = (const u32 *)fw->data;
	switch (*magic) {
	case SOF_EXT_MAN_MAGIC_NUMBER:
	fw_ipc_type = SOF_IPC_TYPE_3;
	break;
	case SOF_EXT_MAN4_MAGIC_NUMBER:
	fw_ipc_type = SOF_IPC_TYPE_4;
	break;
	default:
	dev_err(dev, "Invalid firmware magic: %#x\n", *magic);
	ret = -EINVAL;
	goto out;
	}

	if (ipc_type_to_adjust) {
	*ipc_type_to_adjust = fw_ipc_type;
	} else if (fw_ipc_type != profile->ipc_type) {
	dev_err(dev,
	"ipc type mismatch between %s and expected: %d vs %d\n",
	fw_filename, fw_ipc_type, profile->ipc_type);
	ret = -EINVAL;
	}
	out:
	release_firmware(fw);
	kfree(fw_filename);

	return ret;
	}

	static int sof_test_topology_file(struct device *dev,
	struct sof_loadable_file_profile *profile)
	{
	const struct firmware *fw;
	const char *tplg_filename;
	int ret;

	if (!profile->tplg_path \|\| !profile->tplg_name)
	return 0;

	tplg_filename = kasprintf(GFP_KERNEL, "%s/%s", profile->tplg_path,
	profile->tplg_name);
	if (!tplg_filename)
	return -ENOMEM;

	ret = firmware_request_nowarn(&fw, tplg_filename, dev);
	if (!ret)
	release_firmware(fw);
	else
	dev_dbg(dev, "Failed to open topology file: %s\n", tplg_filename);

	kfree(tplg_filename);

	return ret;
	}

	static bool sof_platform_uses_generic_loader(struct snd_sof_dev *sdev)
	{
	return (sdev->pdata->desc->ops->load_firmware == snd_sof_load_firmware_raw \|\|
	sdev->pdata->desc->ops->load_firmware == snd_sof_load_firmware_memcpy);
	}

	static int
	sof_file_profile_for_ipc_type(struct snd_sof_dev *sdev,
	enum sof_ipc_type ipc_type,
	const struct sof_dev_desc *desc,
	struct sof_loadable_file_profile *base_profile,
	struct sof_loadable_file_profile *out_profile)
	{
	struct snd_sof_pdata *plat_data = sdev->pdata;
	bool fw_lib_path_allocated = false;
	struct device *dev = sdev->dev;
	bool fw_path_allocated = false;
	int ret = 0;

	/* firmware path */
	if (base_profile->fw_path) {
	out_profile->fw_path = base_profile->fw_path;
	} else if (base_profile->fw_path_postfix) {
	out_profile->fw_path = devm_kasprintf(dev, GFP_KERNEL, "%s/%s",
	desc->default_fw_path[ipc_type],
	base_profile->fw_path_postfix);
	if (!out_profile->fw_path)
	return -ENOMEM;

	fw_path_allocated = true;
	} else {
	out_profile->fw_path = desc->default_fw_path[ipc_type];
	}

	/* firmware filename */
	if (base_profile->fw_name)
	out_profile->fw_name = base_profile->fw_name;
	else
	out_profile->fw_name = desc->default_fw_filename[ipc_type];

	/*
	* Check the custom firmware path/filename and adjust the ipc_type to
	* match with the existing file for the remaining path configuration.
	*
	* For default path and firmware name do a verification before
	* continuing further.
	*/
	if ((base_profile->fw_path \|\| base_profile->fw_name) &&
	sof_platform_uses_generic_loader(sdev)) {
	ret = sof_test_firmware_file(dev, out_profile, &ipc_type);
	if (ret)
	return ret;

	if (!(desc->ipc_supported_mask & BIT(ipc_type))) {
	dev_err(dev, "Unsupported IPC type %d needed by %s/%s\n",
	ipc_type, out_profile->fw_path,
	out_profile->fw_name);
	return -EINVAL;
	}
	}

	/* firmware library path */
	if (base_profile->fw_lib_path) {
	out_profile->fw_lib_path = base_profile->fw_lib_path;
	} else if (desc->default_lib_path[ipc_type]) {
	if (base_profile->fw_lib_path_postfix) {
	out_profile->fw_lib_path = devm_kasprintf(dev,
	GFP_KERNEL, "%s/%s",
	desc->default_lib_path[ipc_type],
	base_profile->fw_lib_path_postfix);
	if (!out_profile->fw_lib_path) {
	ret = -ENOMEM;
	goto out;
	}

	fw_lib_path_allocated = true;
	} else {
	out_profile->fw_lib_path = desc->default_lib_path[ipc_type];
	}
	}

	if (base_profile->fw_path_postfix)
	out_profile->fw_path_postfix = base_profile->fw_path_postfix;

	if (base_profile->fw_lib_path_postfix)
	out_profile->fw_lib_path_postfix = base_profile->fw_lib_path_postfix;

	/* topology path */
	if (base_profile->tplg_path)
	out_profile->tplg_path = base_profile->tplg_path;
	else
	out_profile->tplg_path = desc->default_tplg_path[ipc_type];

	/* topology name */
	out_profile->tplg_name = plat_data->tplg_filename;

	out_profile->ipc_type = ipc_type;

	/* Test only default firmware file */
	if ((!base_profile->fw_path && !base_profile->fw_name) &&
	sof_platform_uses_generic_loader(sdev))
	ret = sof_test_firmware_file(dev, out_profile, NULL);

	if (!ret)
	ret = sof_test_topology_file(dev, out_profile);

	out:
	if (ret) {
	/* Free up path strings created with devm_kasprintf */
	if (fw_path_allocated)
	devm_kfree(dev, out_profile->fw_path);
	if (fw_lib_path_allocated)
	devm_kfree(dev, out_profile->fw_lib_path);

	memset(out_profile, 0, sizeof(*out_profile));
	}

	return ret;
	}

	static void
	sof_print_missing_firmware_info(struct snd_sof_dev *sdev,
	enum sof_ipc_type ipc_type,
	struct sof_loadable_file_profile *base_profile)
	{
	struct snd_sof_pdata *plat_data = sdev->pdata;
	const struct sof_dev_desc *desc = plat_data->desc;
	struct device *dev = sdev->dev;
	int ipc_type_count, i;
	char *marker;

	dev_err(dev, "SOF firmware and/or topology file not found.\n");
	dev_info(dev, "Supported default profiles\n");

	if (IS_ENABLED(CONFIG_SND_SOC_SOF_ALLOW_FALLBACK_TO_NEWER_IPC_VERSION))
	ipc_type_count = SOF_IPC_TYPE_COUNT - 1;
	else
	ipc_type_count = base_profile->ipc_type;

	for (i = 0; i <= ipc_type_count; i++) {
	if (!(desc->ipc_supported_mask & BIT(i)))
	continue;

	if (i == ipc_type)
	marker = "Requested";
	else
	marker = "Fallback";

	dev_info(dev, "- ipc type %d (%s):\n", i, marker);
	if (base_profile->fw_path_postfix)
	dev_info(dev, " Firmware file: %s/%s/%s\n",
	desc->default_fw_path[i],
	base_profile->fw_path_postfix,
	desc->default_fw_filename[i]);
	else
	dev_info(dev, " Firmware file: %s/%s\n",
	desc->default_fw_path[i],
	desc->default_fw_filename[i]);

	dev_info(dev, " Topology file: %s/%s\n",
	desc->default_tplg_path[i],
	plat_data->tplg_filename);
	}

	if (base_profile->fw_path \|\| base_profile->fw_name \|\|
	base_profile->tplg_path \|\| base_profile->tplg_name)
	dev_info(dev, "Verify the path/name override module parameters.\n");

	dev_info(dev, "Check if you have 'sof-firmware' package installed.\n");
	dev_info(dev, "Optionally it can be manually downloaded from:\n");
	dev_info(dev, " https://github.com/thesofproject/sof-bin/\n");
	}

	static void sof_print_profile_info(struct snd_sof_dev *sdev,
	enum sof_ipc_type ipc_type,
	struct sof_loadable_file_profile *profile)
	{
	struct device *dev = sdev->dev;

	if (ipc_type != profile->ipc_type)
	dev_info(dev,
	"Using fallback IPC type %d (requested type was %d)\n",
	profile->ipc_type, ipc_type);

	dev_info(dev, "Firmware paths/files for ipc type %d:\n", profile->ipc_type);

	/* The firmware path is only valid when generic loader is used */
	if (sof_platform_uses_generic_loader(sdev))
	dev_info(dev, " Firmware file: %s/%s\n",
	profile->fw_path, profile->fw_name);

	if (profile->fw_lib_path)
	dev_info(dev, " Firmware lib path: %s\n", profile->fw_lib_path);
	dev_info(dev, " Topology file: %s/%s\n", profile->tplg_path, profile->tplg_name);
	}

	int sof_create_ipc_file_profile(struct snd_sof_dev *sdev,
	struct sof_loadable_file_profile *base_profile,
	struct sof_loadable_file_profile *out_profile)
	{
	const struct sof_dev_desc *desc = sdev->pdata->desc;
	int ipc_fallback_start, ret, i;

	memset(out_profile, 0, sizeof(*out_profile));

	ret = sof_file_profile_for_ipc_type(sdev, base_profile->ipc_type, desc,
	base_profile, out_profile);
	if (!ret)
	goto out;

	/*
	* No firmware file was found for the requested IPC type, as fallback
	* if SND_SOC_SOF_ALLOW_FALLBACK_TO_NEWER_IPC_VERSION is selected, check
	* all IPC versions in a backwards direction (from newer to older)
	* if SND_SOC_SOF_ALLOW_FALLBACK_TO_NEWER_IPC_VERSION is not selected,
	* check only older IPC versions than the selected/default version
	*/
	if (IS_ENABLED(CONFIG_SND_SOC_SOF_ALLOW_FALLBACK_TO_NEWER_IPC_VERSION))
	ipc_fallback_start = SOF_IPC_TYPE_COUNT - 1;
	else
	ipc_fallback_start = (int)base_profile->ipc_type - 1;

	for (i = ipc_fallback_start; i >= 0 ; i--) {
	if (i == base_profile->ipc_type \|\|
	!(desc->ipc_supported_mask & BIT(i)))
	continue;

	ret = sof_file_profile_for_ipc_type(sdev, i, desc, base_profile,
	out_profile);
	if (!ret)
	break;
	}

	out:
	if (ret)
	sof_print_missing_firmware_info(sdev, base_profile->ipc_type,
	base_profile);
	else
	sof_print_profile_info(sdev, base_profile->ipc_type, out_profile);

	return ret;
	}
	EXPORT_SYMBOL(sof_create_ipc_file_profile);