drivers/gpu/drm/img-rogue/rgxfwload.c - chromiumos/third_party/kernel - Git at Google

 /*************************************************************************/ /*!
 @File
 @Title          Services firmware load and access routines for Linux
 @Copyright      Copyright (c) Imagination Technologies Ltd. All Rights Reserved
 @Description    Device specific functions
 @License        Dual MIT/GPLv2

 The contents of this file are subject to the MIT license as set out below.

 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
 in the Software without restriction, including without limitation the rights
 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 copies of the Software, and to permit persons to whom the Software is
 furnished to do so, subject to the following conditions:

 The above copyright notice and this permission notice shall be included in
 all copies or substantial portions of the Software.

 Alternatively, the contents of this file may be used under the terms of
 the GNU General Public License Version 2 ("GPL") in which case the provisions
 of GPL are applicable instead of those above.

 If you wish to allow use of your version of this file only under the terms of
 GPL, and not to allow others to use your version of this file under the terms
 of the MIT license, indicate your decision by deleting the provisions above
 and replace them with the notice and other provisions required by GPL as set
 out in the file called "GPL-COPYING" included in this distribution. If you do
 not delete the provisions above, a recipient may use your version of this file
 under the terms of either the MIT license or GPL.

 This License is also included in this distribution in the file called
 "MIT-COPYING".

 EXCEPT AS OTHERWISE STATED IN A NEGOTIATED AGREEMENT: (A) THE SOFTWARE IS
 PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
 BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
 PURPOSE AND NONINFRINGEMENT; AND (B) IN NO EVENT SHALL THE AUTHORS OR
 COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */ /**************************************************************************/

 #include <linux/firmware.h>
 #include <linux/version.h>
 #include <linux/kernel.h>
 #include <linux/err.h>

 #include "device.h"
 #include "module_common.h"
 #include "rgxfwload.h"
 #include "pvr_debug.h"
 #include "srvkm.h"

 struct RGXFW
 {
 	const struct firmware sFW;
 };

 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,13,0)) && defined(RGX_FW_SIGNED)

 /* The Linux kernel does not support the RSA PSS padding mode. It only
  * supports the legacy PKCS#1 padding mode.
  */
 #if defined(RGX_FW_PKCS1_PSS_PADDING)
 #error Linux does not support verification of RSA PSS padded signatures
 #endif

 #include <crypto/public_key.h>
 #include <crypto/hash_info.h>
 #include <crypto/hash.h>

 #include <keys/asymmetric-type.h>
 #include <keys/system_keyring.h>

 #include "signfw.h"

 static bool VerifyFirmware(const struct firmware *psFW)
 {
 	struct FirmwareSignatureHeader *psHeader;
 	struct public_key_signature *psPKS;
 	unsigned char *szKeyID, *pcKeyID;
 	size_t uDigestSize, uDescSize;
 	void *pvSignature, *pvSigner;
 	struct crypto_shash *psTFM;
 	struct shash_desc *psDesc;
 	uint32_t ui32SignatureLen;
 	bool bVerified = false;
 	key_ref_t hKey;
 	uint8_t i;
 	int res;

 	if (psFW->size < FW_SIGN_BACKWARDS_OFFSET)
 	{
 		PVR_DPF((PVR_DBG_ERROR, "%s: Firmware is too small (%zu bytes)",
 								__func__, psFW->size));
 		goto err_release_firmware;
 	}

 	psHeader = (struct FirmwareSignatureHeader *)
 					(psFW->data + (psFW->size - FW_SIGN_BACKWARDS_OFFSET));

 	/* All derived from u8 so can't be exploited to flow out of this page */
 	pvSigner    = (u8 *)psHeader + sizeof(struct FirmwareSignatureHeader);
 	pcKeyID     = (unsigned char *)((u8 *)pvSigner + psHeader->ui8SignerLen);
 	pvSignature = (u8 *)pcKeyID + psHeader->ui8KeyIDLen;

 	/* We cannot update KERNEL_RO in-place, so we must copy the len */
 	ui32SignatureLen = ntohl(psHeader->ui32SignatureLen);

 	if (psHeader->ui8Algo >= PKEY_ALGO__LAST)
 	{
 		PVR_DPF((PVR_DBG_ERROR, "%s: Public key algorithm %u is not supported",
 								__func__, psHeader->ui8Algo));
 		goto err_release_firmware;
 	}

 	if (psHeader->ui8HashAlgo >= PKEY_HASH__LAST)
 	{
 		PVR_DPF((PVR_DBG_ERROR, "%s: Hash algorithm %u is not supported",
 								__func__, psHeader->ui8HashAlgo));
 		goto err_release_firmware;
 	}

 	if (psHeader->ui8IDType != PKEY_ID_X509)
 	{
 		PVR_DPF((PVR_DBG_ERROR, "%s: Only asymmetric X.509 PKI certificates "
 								"are supported", __func__));
 		goto err_release_firmware;
 	}

 	/* Generate a hash of the fw data (including the padding) */

 	psTFM = crypto_alloc_shash(hash_algo_name[psHeader->ui8HashAlgo], 0, 0);
 	if (IS_ERR(psTFM))
 	{
 		PVR_DPF((PVR_DBG_ERROR, "%s: crypto_alloc_shash() failed (%ld)",
 								__func__, PTR_ERR(psTFM)));
 		goto err_release_firmware;
 	}

 	uDescSize = crypto_shash_descsize(psTFM) + sizeof(*psDesc);
 	uDigestSize = crypto_shash_digestsize(psTFM);

 	psPKS = kzalloc(sizeof(*psPKS) + uDescSize + uDigestSize, GFP_KERNEL);
 	if (!psPKS)
 		goto err_free_crypto_shash;

 	psDesc = (struct shash_desc *)((u8 *)psPKS + sizeof(*psPKS));
 	psDesc->tfm = psTFM;
 	psDesc->flags = CRYPTO_TFM_REQ_MAY_SLEEP;

 	psPKS->pkey_algo = psHeader->ui8Algo;
 	psPKS->pkey_hash_algo = psHeader->ui8HashAlgo;

 	psPKS->digest = (u8 *)psPKS + sizeof(*psPKS) + uDescSize;
 	psPKS->digest_size = uDigestSize;

 	res = crypto_shash_init(psDesc);
 	if (res < 0)
 	{
 		PVR_DPF((PVR_DBG_ERROR, "%s: crypto_shash_init() failed (%d)",
 								__func__, res));
 		goto err_free_pks;
 	}

 	res = crypto_shash_finup(psDesc, psFW->data, psFW->size - FW_SIGN_BACKWARDS_OFFSET,
 							 psPKS->digest);
 	if (res < 0)
 	{
 		PVR_DPF((PVR_DBG_ERROR, "%s: crypto_shash_finup() failed (%d)",
 								__func__, res));
 		goto err_free_pks;
 	}

 	/* Populate the MPI with the signature payload */

 	psPKS->nr_mpi = 1;
 	psPKS->rsa.s = mpi_read_raw_data(pvSignature, ui32SignatureLen);
 	if (!psPKS->rsa.s)
 	{
 		PVR_DPF((PVR_DBG_ERROR, "%s: mpi_read_raw_data() failed", __func__));
 		goto err_free_pks;
 	}

 	/* Look up the key we'll use to verify this signature */

 	szKeyID = kmalloc(psHeader->ui8SignerLen + 2 +
 					  psHeader->ui8KeyIDLen * 2 + 1, GFP_KERNEL);
 	if (!szKeyID)
 		goto err_free_mpi;

 	memcpy(szKeyID, pvSigner, psHeader->ui8SignerLen);

 	szKeyID[psHeader->ui8SignerLen + 0] = ':';
 	szKeyID[psHeader->ui8SignerLen + 1] = ' ';

 	for (i = 0; i < psHeader->ui8KeyIDLen; i++)
 		sprintf(&szKeyID[psHeader->ui8SignerLen + 2 + i * 2],
 				"%02x", pcKeyID[i]);

 	szKeyID[psHeader->ui8SignerLen + 2 + psHeader->ui8KeyIDLen * 2] = 0;

 	hKey = keyring_search(make_key_ref(system_trusted_keyring, 1),
 						  &key_type_asymmetric, szKeyID);
 	if (IS_ERR(hKey))
 	{
 		PVR_DPF((PVR_DBG_ERROR, "Request for unknown key '%s' (%ld)",
 								szKeyID, PTR_ERR(hKey)));
 		goto err_free_keyid_string;
 	}

 	res = verify_signature(key_ref_to_ptr(hKey), psPKS);
 	if (res)
 	{
 		PVR_DPF((PVR_DBG_ERROR, "%s: Firmware digital signature verification "
 								"failed (%d)", __func__, res));
 		goto err_put_key;
 	}

 	PVR_LOG(("Digital signature for '%s' verified successfully.",
 			 RGX_FW_FILENAME));
 	bVerified = true;
 err_put_key:
 	key_put(key_ref_to_ptr(hKey));
 err_free_keyid_string:
 	kfree(szKeyID);
 err_free_mpi:
 	mpi_free(psPKS->rsa.s);
 err_free_pks:
 	kfree(psPKS);
 err_free_crypto_shash:
 	crypto_free_shash(psTFM);
 err_release_firmware:
 	return bVerified;
 }

 #else /* defined(RGX_FW_SIGNED) */

 static inline bool VerifyFirmware(const struct firmware *psFW)
 {
 	return true;
 }

 #endif /* defined(RGX_FW_SIGNED) */

 IMG_INTERNAL struct RGXFW *
 RGXLoadFirmware(SHARED_DEV_CONNECTION psDeviceNode, const IMG_CHAR *pszBVNCString, const IMG_CHAR *pszBVpNCString)
 {
 	const struct firmware *psFW;
 	int res;

 	if(pszBVNCString != NULL)
 	{
 		res = request_firmware(&psFW, pszBVNCString, psDeviceNode->psDevConfig->pvOSDevice);
 		if (res != 0)
 		{
 			if(pszBVpNCString != NULL)
 			{
 				PVR_DPF((PVR_DBG_WARNING, "%s: request_firmware('%s') failed (%d), trying '%s'",
 										__func__, pszBVNCString, res, pszBVpNCString));
 				res = request_firmware(&psFW, pszBVpNCString, psDeviceNode->psDevConfig->pvOSDevice);
 			}
 			if (res != 0)
 			{
 				PVR_DPF((PVR_DBG_WARNING, "%s: request_firmware('%s') failed (%d), trying '%s'",
 										__func__, pszBVpNCString, res, RGX_FW_FILENAME));
 				res = request_firmware(&psFW, RGX_FW_FILENAME, psDeviceNode->psDevConfig->pvOSDevice);
 			}
 		}
 	}
 	else
 	{
 		res = request_firmware(&psFW, RGX_FW_FILENAME, psDeviceNode->psDevConfig->pvOSDevice);
 	}
 	if (res != 0)
 	{
 		PVR_DPF((PVR_DBG_ERROR, "%s: request_firmware('%s') failed (%d)",
 								__func__, RGX_FW_FILENAME, res));
 		return NULL;
 	}

 	if (!VerifyFirmware(psFW))
 	{
 		release_firmware(psFW);
 		return NULL;
 	}

 	return (struct RGXFW *)psFW;
 }

 IMG_INTERNAL void
 RGXUnloadFirmware(struct RGXFW *psRGXFW)
 {
 	const struct firmware *psFW = &psRGXFW->sFW;

 	release_firmware(psFW);
 }

 IMG_INTERNAL size_t
 RGXFirmwareSize(struct RGXFW *psRGXFW)
 {
 #if	defined(PVRSRV_GPUVIRT_GUESTDRV)
 	PVR_UNREFERENCED_PARAMETER(psRGXFW);
 	return 0;
 #else
 	const struct firmware *psFW = &psRGXFW->sFW;

 	return psFW->size;
 #endif
 }

 IMG_INTERNAL const void *
 RGXFirmwareData(struct RGXFW *psRGXFW)
 {
 	const struct firmware *psFW = &psRGXFW->sFW;

 	return psFW->data;
 }

 /******************************************************************************
  End of file (rgxfwload.c)
 ******************************************************************************/
	/************************************************************************/ /!
	@File
	@Title Services firmware load and access routines for Linux
	@Copyright Copyright (c) Imagination Technologies Ltd. All Rights Reserved
	@Description Device specific functions
	@License Dual MIT/GPLv2

	The contents of this file are subject to the MIT license as set out below.

	Permission is hereby granted, free of charge, to any person obtaining a copy
	of this software and associated documentation files (the "Software"), to deal
	in the Software without restriction, including without limitation the rights
	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	copies of the Software, and to permit persons to whom the Software is
	furnished to do so, subject to the following conditions:

	The above copyright notice and this permission notice shall be included in
	all copies or substantial portions of the Software.

	Alternatively, the contents of this file may be used under the terms of
	the GNU General Public License Version 2 ("GPL") in which case the provisions
	of GPL are applicable instead of those above.

	If you wish to allow use of your version of this file only under the terms of
	GPL, and not to allow others to use your version of this file under the terms
	of the MIT license, indicate your decision by deleting the provisions above
	and replace them with the notice and other provisions required by GPL as set
	out in the file called "GPL-COPYING" included in this distribution. If you do
	not delete the provisions above, a recipient may use your version of this file
	under the terms of either the MIT license or GPL.

	This License is also included in this distribution in the file called
	"MIT-COPYING".

	EXCEPT AS OTHERWISE STATED IN A NEGOTIATED AGREEMENT: (A) THE SOFTWARE IS
	PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
	BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
	PURPOSE AND NONINFRINGEMENT; AND (B) IN NO EVENT SHALL THE AUTHORS OR
	COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
	IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
	CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
	/ /*************************************************************************/

	#include <linux/firmware.h>
	#include <linux/version.h>
	#include <linux/kernel.h>
	#include <linux/err.h>

	#include "device.h"
	#include "module_common.h"
	#include "rgxfwload.h"
	#include "pvr_debug.h"
	#include "srvkm.h"

	struct RGXFW
	{
	const struct firmware sFW;
	};

	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,13,0)) && defined(RGX_FW_SIGNED)

	/* The Linux kernel does not support the RSA PSS padding mode. It only
	* supports the legacy PKCS#1 padding mode.
	*/
	#if defined(RGX_FW_PKCS1_PSS_PADDING)
	#error Linux does not support verification of RSA PSS padded signatures
	#endif

	#include <crypto/public_key.h>
	#include <crypto/hash_info.h>
	#include <crypto/hash.h>

	#include <keys/asymmetric-type.h>
	#include <keys/system_keyring.h>

	#include "signfw.h"

	static bool VerifyFirmware(const struct firmware *psFW)
	{
	struct FirmwareSignatureHeader *psHeader;
	struct public_key_signature *psPKS;
	unsigned char szKeyID, pcKeyID;
	size_t uDigestSize, uDescSize;
	void pvSignature, pvSigner;
	struct crypto_shash *psTFM;
	struct shash_desc *psDesc;
	uint32_t ui32SignatureLen;
	bool bVerified = false;
	key_ref_t hKey;
	uint8_t i;
	int res;

	if (psFW->size < FW_SIGN_BACKWARDS_OFFSET)
	{
	PVR_DPF((PVR_DBG_ERROR, "%s: Firmware is too small (%zu bytes)",
	__func__, psFW->size));
	goto err_release_firmware;
	}

	psHeader = (struct FirmwareSignatureHeader *)
	(psFW->data + (psFW->size - FW_SIGN_BACKWARDS_OFFSET));

	/* All derived from u8 so can't be exploited to flow out of this page */
	pvSigner = (u8 *)psHeader + sizeof(struct FirmwareSignatureHeader);
	pcKeyID = (unsigned char )((u8 )pvSigner + psHeader->ui8SignerLen);
	pvSignature = (u8 *)pcKeyID + psHeader->ui8KeyIDLen;

	/* We cannot update KERNEL_RO in-place, so we must copy the len */
	ui32SignatureLen = ntohl(psHeader->ui32SignatureLen);

	if (psHeader->ui8Algo >= PKEY_ALGO__LAST)
	{
	PVR_DPF((PVR_DBG_ERROR, "%s: Public key algorithm %u is not supported",
	__func__, psHeader->ui8Algo));
	goto err_release_firmware;
	}

	if (psHeader->ui8HashAlgo >= PKEY_HASH__LAST)
	{
	PVR_DPF((PVR_DBG_ERROR, "%s: Hash algorithm %u is not supported",
	__func__, psHeader->ui8HashAlgo));
	goto err_release_firmware;
	}

	if (psHeader->ui8IDType != PKEY_ID_X509)
	{
	PVR_DPF((PVR_DBG_ERROR, "%s: Only asymmetric X.509 PKI certificates "
	"are supported", __func__));
	goto err_release_firmware;
	}

	/* Generate a hash of the fw data (including the padding) */

	psTFM = crypto_alloc_shash(hash_algo_name[psHeader->ui8HashAlgo], 0, 0);
	if (IS_ERR(psTFM))
	{
	PVR_DPF((PVR_DBG_ERROR, "%s: crypto_alloc_shash() failed (%ld)",
	__func__, PTR_ERR(psTFM)));
	goto err_release_firmware;
	}

	uDescSize = crypto_shash_descsize(psTFM) + sizeof(*psDesc);
	uDigestSize = crypto_shash_digestsize(psTFM);

	psPKS = kzalloc(sizeof(*psPKS) + uDescSize + uDigestSize, GFP_KERNEL);
	if (!psPKS)
	goto err_free_crypto_shash;

	psDesc = (struct shash_desc )((u8 )psPKS + sizeof(*psPKS));
	psDesc->tfm = psTFM;
	psDesc->flags = CRYPTO_TFM_REQ_MAY_SLEEP;

	psPKS->pkey_algo = psHeader->ui8Algo;
	psPKS->pkey_hash_algo = psHeader->ui8HashAlgo;

	psPKS->digest = (u8 )psPKS + sizeof(psPKS) + uDescSize;
	psPKS->digest_size = uDigestSize;

	res = crypto_shash_init(psDesc);
	if (res < 0)
	{
	PVR_DPF((PVR_DBG_ERROR, "%s: crypto_shash_init() failed (%d)",
	__func__, res));
	goto err_free_pks;
	}

	res = crypto_shash_finup(psDesc, psFW->data, psFW->size - FW_SIGN_BACKWARDS_OFFSET,
	psPKS->digest);
	if (res < 0)
	{
	PVR_DPF((PVR_DBG_ERROR, "%s: crypto_shash_finup() failed (%d)",
	__func__, res));
	goto err_free_pks;
	}

	/* Populate the MPI with the signature payload */

	psPKS->nr_mpi = 1;
	psPKS->rsa.s = mpi_read_raw_data(pvSignature, ui32SignatureLen);
	if (!psPKS->rsa.s)
	{
	PVR_DPF((PVR_DBG_ERROR, "%s: mpi_read_raw_data() failed", __func__));
	goto err_free_pks;
	}

	/* Look up the key we'll use to verify this signature */

	szKeyID = kmalloc(psHeader->ui8SignerLen + 2 +
	psHeader->ui8KeyIDLen * 2 + 1, GFP_KERNEL);
	if (!szKeyID)
	goto err_free_mpi;

	memcpy(szKeyID, pvSigner, psHeader->ui8SignerLen);

	szKeyID[psHeader->ui8SignerLen + 0] = ':';
	szKeyID[psHeader->ui8SignerLen + 1] = ' ';

	for (i = 0; i < psHeader->ui8KeyIDLen; i++)
	sprintf(&szKeyID[psHeader->ui8SignerLen + 2 + i * 2],
	"%02x", pcKeyID[i]);

	szKeyID[psHeader->ui8SignerLen + 2 + psHeader->ui8KeyIDLen * 2] = 0;

	hKey = keyring_search(make_key_ref(system_trusted_keyring, 1),
	&key_type_asymmetric, szKeyID);
	if (IS_ERR(hKey))
	{
	PVR_DPF((PVR_DBG_ERROR, "Request for unknown key '%s' (%ld)",
	szKeyID, PTR_ERR(hKey)));
	goto err_free_keyid_string;
	}

	res = verify_signature(key_ref_to_ptr(hKey), psPKS);
	if (res)
	{
	PVR_DPF((PVR_DBG_ERROR, "%s: Firmware digital signature verification "
	"failed (%d)", __func__, res));
	goto err_put_key;
	}

	PVR_LOG(("Digital signature for '%s' verified successfully.",
	RGX_FW_FILENAME));
	bVerified = true;
	err_put_key:
	key_put(key_ref_to_ptr(hKey));
	err_free_keyid_string:
	kfree(szKeyID);
	err_free_mpi:
	mpi_free(psPKS->rsa.s);
	err_free_pks:
	kfree(psPKS);
	err_free_crypto_shash:
	crypto_free_shash(psTFM);
	err_release_firmware:
	return bVerified;
	}

	#else /* defined(RGX_FW_SIGNED) */

	static inline bool VerifyFirmware(const struct firmware *psFW)
	{
	return true;
	}

	#endif /* defined(RGX_FW_SIGNED) */

	IMG_INTERNAL struct RGXFW *
	RGXLoadFirmware(SHARED_DEV_CONNECTION psDeviceNode, const IMG_CHAR pszBVNCString, const IMG_CHAR pszBVpNCString)
	{
	const struct firmware *psFW;
	int res;

	if(pszBVNCString != NULL)
	{
	res = request_firmware(&psFW, pszBVNCString, psDeviceNode->psDevConfig->pvOSDevice);
	if (res != 0)
	{
	if(pszBVpNCString != NULL)
	{
	PVR_DPF((PVR_DBG_WARNING, "%s: request_firmware('%s') failed (%d), trying '%s'",
	__func__, pszBVNCString, res, pszBVpNCString));
	res = request_firmware(&psFW, pszBVpNCString, psDeviceNode->psDevConfig->pvOSDevice);
	}
	if (res != 0)
	{
	PVR_DPF((PVR_DBG_WARNING, "%s: request_firmware('%s') failed (%d), trying '%s'",
	__func__, pszBVpNCString, res, RGX_FW_FILENAME));
	res = request_firmware(&psFW, RGX_FW_FILENAME, psDeviceNode->psDevConfig->pvOSDevice);
	}
	}
	}
	else
	{
	res = request_firmware(&psFW, RGX_FW_FILENAME, psDeviceNode->psDevConfig->pvOSDevice);
	}
	if (res != 0)
	{
	PVR_DPF((PVR_DBG_ERROR, "%s: request_firmware('%s') failed (%d)",
	__func__, RGX_FW_FILENAME, res));
	return NULL;
	}

	if (!VerifyFirmware(psFW))
	{
	release_firmware(psFW);
	return NULL;
	}

	return (struct RGXFW *)psFW;
	}

	IMG_INTERNAL void
	RGXUnloadFirmware(struct RGXFW *psRGXFW)
	{
	const struct firmware *psFW = &psRGXFW->sFW;

	release_firmware(psFW);
	}

	IMG_INTERNAL size_t
	RGXFirmwareSize(struct RGXFW *psRGXFW)
	{
	#if defined(PVRSRV_GPUVIRT_GUESTDRV)
	PVR_UNREFERENCED_PARAMETER(psRGXFW);
	return 0;
	#else
	const struct firmware *psFW = &psRGXFW->sFW;

	return psFW->size;
	#endif
	}

	IMG_INTERNAL const void *
	RGXFirmwareData(struct RGXFW *psRGXFW)
	{
	const struct firmware *psFW = &psRGXFW->sFW;

	return psFW->data;
	}

	/******************************************************************************
	End of file (rgxfwload.c)
	******************************************************************************/