drivers/nfc/nxp-nci/firmware.c - kernel/msm-4.9 - Gitiles

 /*
  * Generic driver for NXP NCI NFC chips
  *
  * Copyright (C) 2014  NXP Semiconductors  All rights reserved.
  *
  * Author: Clément Perrochaud <clement.perrochaud@nxp.com>
  *
  * Derived from PN544 device driver:
  * Copyright (C) 2012  Intel Corporation. All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms and conditions of the GNU General Public License,
  * version 2, as published by the Free Software Foundation.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  */

 #include <linux/completion.h>
 #include <linux/firmware.h>
 #include <linux/nfc.h>
 #include <asm/unaligned.h>

 #include "nxp-nci.h"

 /* Crypto operations can take up to 30 seconds */
 #define NXP_NCI_FW_ANSWER_TIMEOUT	msecs_to_jiffies(30000)

 #define NXP_NCI_FW_CMD_RESET		0xF0
 #define NXP_NCI_FW_CMD_GETVERSION	0xF1
 #define NXP_NCI_FW_CMD_CHECKINTEGRITY	0xE0
 #define NXP_NCI_FW_CMD_WRITE		0xC0
 #define NXP_NCI_FW_CMD_READ		0xA2
 #define NXP_NCI_FW_CMD_GETSESSIONSTATE	0xF2
 #define NXP_NCI_FW_CMD_LOG		0xA7
 #define NXP_NCI_FW_CMD_FORCE		0xD0
 #define NXP_NCI_FW_CMD_GET_DIE_ID	0xF4

 #define NXP_NCI_FW_CHUNK_FLAG	0x0400

 #define NXP_NCI_FW_RESULT_OK				0x00
 #define NXP_NCI_FW_RESULT_INVALID_ADDR			0x01
 #define NXP_NCI_FW_RESULT_GENERIC_ERROR			0x02
 #define NXP_NCI_FW_RESULT_UNKNOWN_CMD			0x0B
 #define NXP_NCI_FW_RESULT_ABORTED_CMD			0x0C
 #define NXP_NCI_FW_RESULT_PLL_ERROR			0x0D
 #define NXP_NCI_FW_RESULT_ADDR_RANGE_OFL_ERROR		0x1E
 #define NXP_NCI_FW_RESULT_BUFFER_OFL_ERROR		0x1F
 #define NXP_NCI_FW_RESULT_MEM_BSY			0x20
 #define NXP_NCI_FW_RESULT_SIGNATURE_ERROR		0x21
 #define NXP_NCI_FW_RESULT_FIRMWARE_VERSION_ERROR	0x24
 #define NXP_NCI_FW_RESULT_PROTOCOL_ERROR		0x28
 #define NXP_NCI_FW_RESULT_SFWU_DEGRADED			0x2A
 #define NXP_NCI_FW_RESULT_PH_STATUS_FIRST_CHUNK		0x2D
 #define NXP_NCI_FW_RESULT_PH_STATUS_NEXT_CHUNK		0x2E
 #define NXP_NCI_FW_RESULT_PH_STATUS_INTERNAL_ERROR_5	0xC5

 void nxp_nci_fw_work_complete(struct nxp_nci_info *info, int result)
 {
 	struct nxp_nci_fw_info *fw_info = &info->fw_info;
 	int r;

 	if (info->phy_ops->set_mode) {
 		r = info->phy_ops->set_mode(info->phy_id, NXP_NCI_MODE_COLD);
 		if (r < 0 && result == 0)
 			result = -r;
 	}

 	info->mode = NXP_NCI_MODE_COLD;

 	if (fw_info->fw) {
 		release_firmware(fw_info->fw);
 		fw_info->fw = NULL;
 	}

 	nfc_fw_download_done(info->ndev->nfc_dev, fw_info->name, (u32) -result);
 }

 /* crc_ccitt cannot be used since it is computed MSB first and not LSB first */
 static u16 nxp_nci_fw_crc(u8 const *buffer, size_t len)
 {
 	u16 crc = 0xffff;

 	while (len--) {
 		crc = ((crc >> 8) | (crc << 8)) ^ *buffer++;
 		crc ^= (crc & 0xff) >> 4;
 		crc ^= (crc & 0xff) << 12;
 		crc ^= (crc & 0xff) << 5;
 	}

 	return crc;
 }

 static int nxp_nci_fw_send_chunk(struct nxp_nci_info *info)
 {
 	struct nxp_nci_fw_info *fw_info = &info->fw_info;
 	u16 header, crc;
 	struct sk_buff *skb;
 	size_t chunk_len;
 	size_t remaining_len;
 	int r;

 	skb = nci_skb_alloc(info->ndev, info->max_payload, GFP_KERNEL);
 	if (!skb) {
 		r = -ENOMEM;
 		goto chunk_exit;
 	}

 	chunk_len = info->max_payload - NXP_NCI_FW_HDR_LEN - NXP_NCI_FW_CRC_LEN;
 	remaining_len = fw_info->frame_size - fw_info->written;

 	if (remaining_len > chunk_len) {
 		header = NXP_NCI_FW_CHUNK_FLAG;
 	} else {
 		chunk_len = remaining_len;
 		header = 0x0000;
 	}

 	header |= chunk_len & NXP_NCI_FW_FRAME_LEN_MASK;
 	put_unaligned_be16(header, skb_put(skb, NXP_NCI_FW_HDR_LEN));

 	memcpy(skb_put(skb, chunk_len), fw_info->data + fw_info->written,
 	       chunk_len);

 	crc = nxp_nci_fw_crc(skb->data, chunk_len + NXP_NCI_FW_HDR_LEN);
 	put_unaligned_be16(crc, skb_put(skb, NXP_NCI_FW_CRC_LEN));

 	r = info->phy_ops->write(info->phy_id, skb);
 	if (r >= 0)
 		r = chunk_len;

 	kfree_skb(skb);

 chunk_exit:
 	return r;
 }

 static int nxp_nci_fw_send(struct nxp_nci_info *info)
 {
 	struct nxp_nci_fw_info *fw_info = &info->fw_info;
 	long completion_rc;
 	int r;

 	reinit_completion(&fw_info->cmd_completion);

 	if (fw_info->written == 0) {
 		fw_info->frame_size = get_unaligned_be16(fw_info->data) &
 				      NXP_NCI_FW_FRAME_LEN_MASK;
 		fw_info->data += NXP_NCI_FW_HDR_LEN;
 		fw_info->size -= NXP_NCI_FW_HDR_LEN;
 	}

 	if (fw_info->frame_size > fw_info->size)
 		return -EMSGSIZE;

 	r = nxp_nci_fw_send_chunk(info);
 	if (r < 0)
 		return r;

 	fw_info->written += r;

 	if (*fw_info->data == NXP_NCI_FW_CMD_RESET) {
 		fw_info->cmd_result = 0;
 		if (fw_info->fw)
 			schedule_work(&fw_info->work);
 	} else {
 		completion_rc = wait_for_completion_interruptible_timeout(
 			&fw_info->cmd_completion, NXP_NCI_FW_ANSWER_TIMEOUT);
 		if (completion_rc == 0)
 			return -ETIMEDOUT;
 	}

 	return 0;
 }

 void nxp_nci_fw_work(struct work_struct *work)
 {
 	struct nxp_nci_info *info;
 	struct nxp_nci_fw_info *fw_info;
 	int r;

 	fw_info = container_of(work, struct nxp_nci_fw_info, work);
 	info = container_of(fw_info, struct nxp_nci_info, fw_info);

 	mutex_lock(&info->info_lock);

 	r = fw_info->cmd_result;
 	if (r < 0)
 		goto exit_work;

 	if (fw_info->written == fw_info->frame_size) {
 		fw_info->data += fw_info->frame_size;
 		fw_info->size -= fw_info->frame_size;
 		fw_info->written = 0;
 	}

 	if (fw_info->size > 0)
 		r = nxp_nci_fw_send(info);

 exit_work:
 	if (r < 0 || fw_info->size == 0)
 		nxp_nci_fw_work_complete(info, r);
 	mutex_unlock(&info->info_lock);
 }

 int nxp_nci_fw_download(struct nci_dev *ndev, const char *firmware_name)
 {
 	struct nxp_nci_info *info = nci_get_drvdata(ndev);
 	struct nxp_nci_fw_info *fw_info = &info->fw_info;
 	int r;

 	mutex_lock(&info->info_lock);

 	if (!info->phy_ops->set_mode || !info->phy_ops->write) {
 		r = -ENOTSUPP;
 		goto fw_download_exit;
 	}

 	if (!firmware_name || firmware_name[0] == '\0') {
 		r = -EINVAL;
 		goto fw_download_exit;
 	}

 	strcpy(fw_info->name, firmware_name);

 	r = request_firmware(&fw_info->fw, firmware_name,
 			     ndev->nfc_dev->dev.parent);
 	if (r < 0)
 		goto fw_download_exit;

 	r = info->phy_ops->set_mode(info->phy_id, NXP_NCI_MODE_FW);
 	if (r < 0) {
 		release_firmware(fw_info->fw);
 		goto fw_download_exit;
 	}

 	info->mode = NXP_NCI_MODE_FW;

 	fw_info->data = fw_info->fw->data;
 	fw_info->size = fw_info->fw->size;
 	fw_info->written = 0;
 	fw_info->frame_size = 0;
 	fw_info->cmd_result = 0;

 	schedule_work(&fw_info->work);

 fw_download_exit:
 	mutex_unlock(&info->info_lock);
 	return r;
 }

 static int nxp_nci_fw_read_status(u8 stat)
 {
 	switch (stat) {
 	case NXP_NCI_FW_RESULT_OK:
 		return 0;
 	case NXP_NCI_FW_RESULT_INVALID_ADDR:
 		return -EINVAL;
 	case NXP_NCI_FW_RESULT_UNKNOWN_CMD:
 		return -EINVAL;
 	case NXP_NCI_FW_RESULT_ABORTED_CMD:
 		return -EMSGSIZE;
 	case NXP_NCI_FW_RESULT_ADDR_RANGE_OFL_ERROR:
 		return -EADDRNOTAVAIL;
 	case NXP_NCI_FW_RESULT_BUFFER_OFL_ERROR:
 		return -ENOBUFS;
 	case NXP_NCI_FW_RESULT_MEM_BSY:
 		return -ENOKEY;
 	case NXP_NCI_FW_RESULT_SIGNATURE_ERROR:
 		return -EKEYREJECTED;
 	case NXP_NCI_FW_RESULT_FIRMWARE_VERSION_ERROR:
 		return -EALREADY;
 	case NXP_NCI_FW_RESULT_PROTOCOL_ERROR:
 		return -EPROTO;
 	case NXP_NCI_FW_RESULT_SFWU_DEGRADED:
 		return -EHWPOISON;
 	case NXP_NCI_FW_RESULT_PH_STATUS_FIRST_CHUNK:
 		return 0;
 	case NXP_NCI_FW_RESULT_PH_STATUS_NEXT_CHUNK:
 		return 0;
 	case NXP_NCI_FW_RESULT_PH_STATUS_INTERNAL_ERROR_5:
 		return -EINVAL;
 	default:
 		return -EIO;
 	}
 }

 static u16 nxp_nci_fw_check_crc(struct sk_buff *skb)
 {
 	u16 crc, frame_crc;
 	size_t len = skb->len - NXP_NCI_FW_CRC_LEN;

 	crc = nxp_nci_fw_crc(skb->data, len);
 	frame_crc = get_unaligned_be16(skb->data + len);

 	return (crc ^ frame_crc);
 }

 void nxp_nci_fw_recv_frame(struct nci_dev *ndev, struct sk_buff *skb)
 {
 	struct nxp_nci_info *info = nci_get_drvdata(ndev);
 	struct nxp_nci_fw_info *fw_info = &info->fw_info;

 	complete(&fw_info->cmd_completion);

 	if (skb) {
 		if (nxp_nci_fw_check_crc(skb) != 0x00)
 			fw_info->cmd_result = -EBADMSG;
 		else
 			fw_info->cmd_result = nxp_nci_fw_read_status(
 					*skb_pull(skb, NXP_NCI_FW_HDR_LEN));
 		kfree_skb(skb);
 	} else {
 		fw_info->cmd_result = -EIO;
 	}

 	if (fw_info->fw)
 		schedule_work(&fw_info->work);
 }
 EXPORT_SYMBOL(nxp_nci_fw_recv_frame);
	/*
	* Generic driver for NXP NCI NFC chips
	*
	* Copyright (C) 2014 NXP Semiconductors All rights reserved.
	*
	* Author: Clément Perrochaud <clement.perrochaud@nxp.com>
	*
	* Derived from PN544 device driver:
	* Copyright (C) 2012 Intel Corporation. All rights reserved.
	*
	* This program is free software; you can redistribute it and/or modify it
	* under the terms and conditions of the GNU General Public License,
	* version 2, as published by the Free Software Foundation.
	*
	* This program is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	* GNU General Public License for more details.
	*
	* You should have received a copy of the GNU General Public License
	* along with this program; if not, see <http://www.gnu.org/licenses/>.
	*/

	#include <linux/completion.h>
	#include <linux/firmware.h>
	#include <linux/nfc.h>
	#include <asm/unaligned.h>

	#include "nxp-nci.h"

	/* Crypto operations can take up to 30 seconds */
	#define NXP_NCI_FW_ANSWER_TIMEOUT msecs_to_jiffies(30000)

	#define NXP_NCI_FW_CMD_RESET 0xF0
	#define NXP_NCI_FW_CMD_GETVERSION 0xF1
	#define NXP_NCI_FW_CMD_CHECKINTEGRITY 0xE0
	#define NXP_NCI_FW_CMD_WRITE 0xC0
	#define NXP_NCI_FW_CMD_READ 0xA2
	#define NXP_NCI_FW_CMD_GETSESSIONSTATE 0xF2
	#define NXP_NCI_FW_CMD_LOG 0xA7
	#define NXP_NCI_FW_CMD_FORCE 0xD0
	#define NXP_NCI_FW_CMD_GET_DIE_ID 0xF4

	#define NXP_NCI_FW_CHUNK_FLAG 0x0400

	#define NXP_NCI_FW_RESULT_OK 0x00
	#define NXP_NCI_FW_RESULT_INVALID_ADDR 0x01
	#define NXP_NCI_FW_RESULT_GENERIC_ERROR 0x02
	#define NXP_NCI_FW_RESULT_UNKNOWN_CMD 0x0B
	#define NXP_NCI_FW_RESULT_ABORTED_CMD 0x0C
	#define NXP_NCI_FW_RESULT_PLL_ERROR 0x0D
	#define NXP_NCI_FW_RESULT_ADDR_RANGE_OFL_ERROR 0x1E
	#define NXP_NCI_FW_RESULT_BUFFER_OFL_ERROR 0x1F
	#define NXP_NCI_FW_RESULT_MEM_BSY 0x20
	#define NXP_NCI_FW_RESULT_SIGNATURE_ERROR 0x21
	#define NXP_NCI_FW_RESULT_FIRMWARE_VERSION_ERROR 0x24
	#define NXP_NCI_FW_RESULT_PROTOCOL_ERROR 0x28
	#define NXP_NCI_FW_RESULT_SFWU_DEGRADED 0x2A
	#define NXP_NCI_FW_RESULT_PH_STATUS_FIRST_CHUNK 0x2D
	#define NXP_NCI_FW_RESULT_PH_STATUS_NEXT_CHUNK 0x2E
	#define NXP_NCI_FW_RESULT_PH_STATUS_INTERNAL_ERROR_5 0xC5

	void nxp_nci_fw_work_complete(struct nxp_nci_info *info, int result)
	{
	struct nxp_nci_fw_info *fw_info = &info->fw_info;
	int r;

	if (info->phy_ops->set_mode) {
	r = info->phy_ops->set_mode(info->phy_id, NXP_NCI_MODE_COLD);
	if (r < 0 && result == 0)
	result = -r;
	}

	info->mode = NXP_NCI_MODE_COLD;

	if (fw_info->fw) {
	release_firmware(fw_info->fw);
	fw_info->fw = NULL;
	}

	nfc_fw_download_done(info->ndev->nfc_dev, fw_info->name, (u32) -result);
	}

	/* crc_ccitt cannot be used since it is computed MSB first and not LSB first */
	static u16 nxp_nci_fw_crc(u8 const *buffer, size_t len)
	{
	u16 crc = 0xffff;

	while (len--) {
	crc = ((crc >> 8) \| (crc << 8)) ^ *buffer++;
	crc ^= (crc & 0xff) >> 4;
	crc ^= (crc & 0xff) << 12;
	crc ^= (crc & 0xff) << 5;
	}

	return crc;
	}

	static int nxp_nci_fw_send_chunk(struct nxp_nci_info *info)
	{
	struct nxp_nci_fw_info *fw_info = &info->fw_info;
	u16 header, crc;
	struct sk_buff *skb;
	size_t chunk_len;
	size_t remaining_len;
	int r;

	skb = nci_skb_alloc(info->ndev, info->max_payload, GFP_KERNEL);
	if (!skb) {
	r = -ENOMEM;
	goto chunk_exit;
	}

	chunk_len = info->max_payload - NXP_NCI_FW_HDR_LEN - NXP_NCI_FW_CRC_LEN;
	remaining_len = fw_info->frame_size - fw_info->written;

	if (remaining_len > chunk_len) {
	header = NXP_NCI_FW_CHUNK_FLAG;
	} else {
	chunk_len = remaining_len;
	header = 0x0000;
	}

	header \|= chunk_len & NXP_NCI_FW_FRAME_LEN_MASK;
	put_unaligned_be16(header, skb_put(skb, NXP_NCI_FW_HDR_LEN));

	memcpy(skb_put(skb, chunk_len), fw_info->data + fw_info->written,
	chunk_len);

	crc = nxp_nci_fw_crc(skb->data, chunk_len + NXP_NCI_FW_HDR_LEN);
	put_unaligned_be16(crc, skb_put(skb, NXP_NCI_FW_CRC_LEN));

	r = info->phy_ops->write(info->phy_id, skb);
	if (r >= 0)
	r = chunk_len;

	kfree_skb(skb);

	chunk_exit:
	return r;
	}

	static int nxp_nci_fw_send(struct nxp_nci_info *info)
	{
	struct nxp_nci_fw_info *fw_info = &info->fw_info;
	long completion_rc;
	int r;

	reinit_completion(&fw_info->cmd_completion);

	if (fw_info->written == 0) {
	fw_info->frame_size = get_unaligned_be16(fw_info->data) &
	NXP_NCI_FW_FRAME_LEN_MASK;
	fw_info->data += NXP_NCI_FW_HDR_LEN;
	fw_info->size -= NXP_NCI_FW_HDR_LEN;
	}

	if (fw_info->frame_size > fw_info->size)
	return -EMSGSIZE;

	r = nxp_nci_fw_send_chunk(info);
	if (r < 0)
	return r;

	fw_info->written += r;

	if (*fw_info->data == NXP_NCI_FW_CMD_RESET) {
	fw_info->cmd_result = 0;
	if (fw_info->fw)
	schedule_work(&fw_info->work);
	} else {
	completion_rc = wait_for_completion_interruptible_timeout(
	&fw_info->cmd_completion, NXP_NCI_FW_ANSWER_TIMEOUT);
	if (completion_rc == 0)
	return -ETIMEDOUT;
	}

	return 0;
	}

	void nxp_nci_fw_work(struct work_struct *work)
	{
	struct nxp_nci_info *info;
	struct nxp_nci_fw_info *fw_info;
	int r;

	fw_info = container_of(work, struct nxp_nci_fw_info, work);
	info = container_of(fw_info, struct nxp_nci_info, fw_info);

	mutex_lock(&info->info_lock);

	r = fw_info->cmd_result;
	if (r < 0)
	goto exit_work;

	if (fw_info->written == fw_info->frame_size) {
	fw_info->data += fw_info->frame_size;
	fw_info->size -= fw_info->frame_size;
	fw_info->written = 0;
	}

	if (fw_info->size > 0)
	r = nxp_nci_fw_send(info);

	exit_work:
	if (r < 0 \|\| fw_info->size == 0)
	nxp_nci_fw_work_complete(info, r);
	mutex_unlock(&info->info_lock);
	}

	int nxp_nci_fw_download(struct nci_dev ndev, const char firmware_name)
	{
	struct nxp_nci_info *info = nci_get_drvdata(ndev);
	struct nxp_nci_fw_info *fw_info = &info->fw_info;
	int r;

	mutex_lock(&info->info_lock);

	if (!info->phy_ops->set_mode \|\| !info->phy_ops->write) {
	r = -ENOTSUPP;
	goto fw_download_exit;
	}

	if (!firmware_name \|\| firmware_name[0] == '\0') {
	r = -EINVAL;
	goto fw_download_exit;
	}

	strcpy(fw_info->name, firmware_name);

	r = request_firmware(&fw_info->fw, firmware_name,
	ndev->nfc_dev->dev.parent);
	if (r < 0)
	goto fw_download_exit;

	r = info->phy_ops->set_mode(info->phy_id, NXP_NCI_MODE_FW);
	if (r < 0) {
	release_firmware(fw_info->fw);
	goto fw_download_exit;
	}

	info->mode = NXP_NCI_MODE_FW;

	fw_info->data = fw_info->fw->data;
	fw_info->size = fw_info->fw->size;
	fw_info->written = 0;
	fw_info->frame_size = 0;
	fw_info->cmd_result = 0;

	schedule_work(&fw_info->work);

	fw_download_exit:
	mutex_unlock(&info->info_lock);
	return r;
	}

	static int nxp_nci_fw_read_status(u8 stat)
	{
	switch (stat) {
	case NXP_NCI_FW_RESULT_OK:
	return 0;
	case NXP_NCI_FW_RESULT_INVALID_ADDR:
	return -EINVAL;
	case NXP_NCI_FW_RESULT_UNKNOWN_CMD:
	return -EINVAL;
	case NXP_NCI_FW_RESULT_ABORTED_CMD:
	return -EMSGSIZE;
	case NXP_NCI_FW_RESULT_ADDR_RANGE_OFL_ERROR:
	return -EADDRNOTAVAIL;
	case NXP_NCI_FW_RESULT_BUFFER_OFL_ERROR:
	return -ENOBUFS;
	case NXP_NCI_FW_RESULT_MEM_BSY:
	return -ENOKEY;
	case NXP_NCI_FW_RESULT_SIGNATURE_ERROR:
	return -EKEYREJECTED;
	case NXP_NCI_FW_RESULT_FIRMWARE_VERSION_ERROR:
	return -EALREADY;
	case NXP_NCI_FW_RESULT_PROTOCOL_ERROR:
	return -EPROTO;
	case NXP_NCI_FW_RESULT_SFWU_DEGRADED:
	return -EHWPOISON;
	case NXP_NCI_FW_RESULT_PH_STATUS_FIRST_CHUNK:
	return 0;
	case NXP_NCI_FW_RESULT_PH_STATUS_NEXT_CHUNK:
	return 0;
	case NXP_NCI_FW_RESULT_PH_STATUS_INTERNAL_ERROR_5:
	return -EINVAL;
	default:
	return -EIO;
	}
	}

	static u16 nxp_nci_fw_check_crc(struct sk_buff *skb)
	{
	u16 crc, frame_crc;
	size_t len = skb->len - NXP_NCI_FW_CRC_LEN;

	crc = nxp_nci_fw_crc(skb->data, len);
	frame_crc = get_unaligned_be16(skb->data + len);

	return (crc ^ frame_crc);
	}

	void nxp_nci_fw_recv_frame(struct nci_dev ndev, struct sk_buff skb)
	{
	struct nxp_nci_info *info = nci_get_drvdata(ndev);
	struct nxp_nci_fw_info *fw_info = &info->fw_info;

	complete(&fw_info->cmd_completion);

	if (skb) {
	if (nxp_nci_fw_check_crc(skb) != 0x00)
	fw_info->cmd_result = -EBADMSG;
	else
	fw_info->cmd_result = nxp_nci_fw_read_status(
	*skb_pull(skb, NXP_NCI_FW_HDR_LEN));
	kfree_skb(skb);
	} else {
	fw_info->cmd_result = -EIO;
	}

	if (fw_info->fw)
	schedule_work(&fw_info->work);
	}
	EXPORT_SYMBOL(nxp_nci_fw_recv_frame);