[mirror_ubuntu-jammy-kernel.git] / drivers / nfc / nxp-nci / firmware.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * 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.
 */

#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));

	skb_put_data(skb, 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(*(u8 *)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);
Commit	Line	Data
46fe7771	1	// SPDX-License-Identifier: GPL-2.0-only
dece4585 CP	2	/*
	3	* Generic driver for NXP NCI NFC chips
	4	*
	5	* Copyright (C) 2014 NXP Semiconductors All rights reserved.
	6	*
	7	* Author: Clément Perrochaud <clement.perrochaud@nxp.com>
	8	*
	9	* Derived from PN544 device driver:
	10	* Copyright (C) 2012 Intel Corporation. All rights reserved.
dece4585 CP	11	*/
	12
	13	#include <linux/completion.h>
	14	#include <linux/firmware.h>
	15	#include <linux/nfc.h>
2eee74b7	16	#include <asm/unaligned.h>
dece4585 CP	17
	18	#include "nxp-nci.h"
	19
	20	/* Crypto operations can take up to 30 seconds */
	21	#define NXP_NCI_FW_ANSWER_TIMEOUT msecs_to_jiffies(30000)
	22
	23	#define NXP_NCI_FW_CMD_RESET 0xF0
	24	#define NXP_NCI_FW_CMD_GETVERSION 0xF1
	25	#define NXP_NCI_FW_CMD_CHECKINTEGRITY 0xE0
	26	#define NXP_NCI_FW_CMD_WRITE 0xC0
	27	#define NXP_NCI_FW_CMD_READ 0xA2
	28	#define NXP_NCI_FW_CMD_GETSESSIONSTATE 0xF2
	29	#define NXP_NCI_FW_CMD_LOG 0xA7
	30	#define NXP_NCI_FW_CMD_FORCE 0xD0
	31	#define NXP_NCI_FW_CMD_GET_DIE_ID 0xF4
	32
	33	#define NXP_NCI_FW_CHUNK_FLAG 0x0400
	34
	35	#define NXP_NCI_FW_RESULT_OK 0x00
	36	#define NXP_NCI_FW_RESULT_INVALID_ADDR 0x01
	37	#define NXP_NCI_FW_RESULT_GENERIC_ERROR 0x02
	38	#define NXP_NCI_FW_RESULT_UNKNOWN_CMD 0x0B
	39	#define NXP_NCI_FW_RESULT_ABORTED_CMD 0x0C
	40	#define NXP_NCI_FW_RESULT_PLL_ERROR 0x0D
	41	#define NXP_NCI_FW_RESULT_ADDR_RANGE_OFL_ERROR 0x1E
	42	#define NXP_NCI_FW_RESULT_BUFFER_OFL_ERROR 0x1F
	43	#define NXP_NCI_FW_RESULT_MEM_BSY 0x20
	44	#define NXP_NCI_FW_RESULT_SIGNATURE_ERROR 0x21
	45	#define NXP_NCI_FW_RESULT_FIRMWARE_VERSION_ERROR 0x24
	46	#define NXP_NCI_FW_RESULT_PROTOCOL_ERROR 0x28
	47	#define NXP_NCI_FW_RESULT_SFWU_DEGRADED 0x2A
	48	#define NXP_NCI_FW_RESULT_PH_STATUS_FIRST_CHUNK 0x2D
	49	#define NXP_NCI_FW_RESULT_PH_STATUS_NEXT_CHUNK 0x2E
	50	#define NXP_NCI_FW_RESULT_PH_STATUS_INTERNAL_ERROR_5 0xC5
	51
	52	void nxp_nci_fw_work_complete(struct nxp_nci_info *info, int result)
	53	{
	54	struct nxp_nci_fw_info *fw_info = &info->fw_info;
	55	int r;
	56
	57	if (info->phy_ops->set_mode) {
	58	r = info->phy_ops->set_mode(info->phy_id, NXP_NCI_MODE_COLD);
	59	if (r < 0 && result == 0)
	60	result = -r;
	61	}
	62
	63	info->mode = NXP_NCI_MODE_COLD;
	64
	65	if (fw_info->fw) {
	66	release_firmware(fw_info->fw);
	67	fw_info->fw = NULL;
	68	}
	69
	70	nfc_fw_download_done(info->ndev->nfc_dev, fw_info->name, (u32) -result);
	71	}
	72
	73	/* crc_ccitt cannot be used since it is computed MSB first and not LSB first */
	74	static u16 nxp_nci_fw_crc(u8 const *buffer, size_t len)
	75	{
	76	u16 crc = 0xffff;
	77
	78	while (len--) {
	79	crc = ((crc >> 8) \| (crc << 8)) ^ *buffer++;
	80	crc ^= (crc & 0xff) >> 4;
81	crc ^= (crc & 0xff) << 12;
82	crc ^= (crc & 0xff) << 5;
83	}
84
85	return crc;
86	}
87
88	static int nxp_nci_fw_send_chunk(struct nxp_nci_info *info)
89	{
90	struct nxp_nci_fw_info *fw_info = &info->fw_info;
91	u16 header, crc;
92	struct sk_buff *skb;
93	size_t chunk_len;
94	size_t remaining_len;
95	int r;
96
97	skb = nci_skb_alloc(info->ndev, info->max_payload, GFP_KERNEL);
98	if (!skb) {
99	r = -ENOMEM;
100	goto chunk_exit;
101	}
102
103	chunk_len = info->max_payload - NXP_NCI_FW_HDR_LEN - NXP_NCI_FW_CRC_LEN;
104	remaining_len = fw_info->frame_size - fw_info->written;
105
106	if (remaining_len > chunk_len) {
107	header = NXP_NCI_FW_CHUNK_FLAG;
108	} else {
109	chunk_len = remaining_len;
110	header = 0x0000;
111	}
112
113	header \|= chunk_len & NXP_NCI_FW_FRAME_LEN_MASK;
114	put_unaligned_be16(header, skb_put(skb, NXP_NCI_FW_HDR_LEN));
115
59ae1d12	116	skb_put_data(skb, fw_info->data + fw_info->written, chunk_len);
dece4585 CP	117
	118	crc = nxp_nci_fw_crc(skb->data, chunk_len + NXP_NCI_FW_HDR_LEN);
	119	put_unaligned_be16(crc, skb_put(skb, NXP_NCI_FW_CRC_LEN));
	120
	121	r = info->phy_ops->write(info->phy_id, skb);
	122	if (r >= 0)
	123	r = chunk_len;
	124
	125	kfree_skb(skb);
	126
	127	chunk_exit:
	128	return r;
	129	}
	130
	131	static int nxp_nci_fw_send(struct nxp_nci_info *info)
	132	{
	133	struct nxp_nci_fw_info *fw_info = &info->fw_info;
	134	long completion_rc;
	135	int r;
	136
	137	reinit_completion(&fw_info->cmd_completion);
	138
	139	if (fw_info->written == 0) {
	140	fw_info->frame_size = get_unaligned_be16(fw_info->data) &
	141	NXP_NCI_FW_FRAME_LEN_MASK;
	142	fw_info->data += NXP_NCI_FW_HDR_LEN;
	143	fw_info->size -= NXP_NCI_FW_HDR_LEN;
	144	}
	145
	146	if (fw_info->frame_size > fw_info->size)
	147	return -EMSGSIZE;
	148
	149	r = nxp_nci_fw_send_chunk(info);
	150	if (r < 0)
	151	return r;
	152
	153	fw_info->written += r;
	154
	155	if (*fw_info->data == NXP_NCI_FW_CMD_RESET) {
	156	fw_info->cmd_result = 0;
	157	if (fw_info->fw)
	158	schedule_work(&fw_info->work);
	159	} else {
	160	completion_rc = wait_for_completion_interruptible_timeout(
	161	&fw_info->cmd_completion, NXP_NCI_FW_ANSWER_TIMEOUT);
	162	if (completion_rc == 0)
	163	return -ETIMEDOUT;
	164	}
	165
	166	return 0;
	167	}
	168
	169	void nxp_nci_fw_work(struct work_struct *work)
	170	{
	171	struct nxp_nci_info *info;
	172	struct nxp_nci_fw_info *fw_info;
	173	int r;
	174
	175	fw_info = container_of(work, struct nxp_nci_fw_info, work);
	176	info = container_of(fw_info, struct nxp_nci_info, fw_info);
	177
	178	mutex_lock(&info->info_lock);
	179
	180	r = fw_info->cmd_result;
181	if (r < 0)
182	goto exit_work;
183
184	if (fw_info->written == fw_info->frame_size) {
185	fw_info->data += fw_info->frame_size;
186	fw_info->size -= fw_info->frame_size;
187	fw_info->written = 0;
188	}
189
190	if (fw_info->size > 0)
191	r = nxp_nci_fw_send(info);
192
193	exit_work:
194	if (r < 0 \|\| fw_info->size == 0)
195	nxp_nci_fw_work_complete(info, r);
196	mutex_unlock(&info->info_lock);
197	}
198
199	int nxp_nci_fw_download(struct nci_dev ndev, const char firmware_name)
200	{
201	struct nxp_nci_info *info = nci_get_drvdata(ndev);
202	struct nxp_nci_fw_info *fw_info = &info->fw_info;
203	int r;
204
205	mutex_lock(&info->info_lock);
206
207	if (!info->phy_ops->set_mode \|\| !info->phy_ops->write) {
208	r = -ENOTSUPP;
209	goto fw_download_exit;
210	}
211
212	if (!firmware_name \|\| firmware_name[0] == '\0') {
213	r = -EINVAL;
214	goto fw_download_exit;
215	}
216
217	strcpy(fw_info->name, firmware_name);
218
219	r = request_firmware(&fw_info->fw, firmware_name,
220	ndev->nfc_dev->dev.parent);
221	if (r < 0)
222	goto fw_download_exit;
223
224	r = info->phy_ops->set_mode(info->phy_id, NXP_NCI_MODE_FW);
9421ce10 SO	225	if (r < 0) {
9421ce10 SO	226	release_firmware(fw_info->fw);
dece4585	227	goto fw_download_exit;
9421ce10	228	}
dece4585 CP	229
	230	info->mode = NXP_NCI_MODE_FW;
	231
	232	fw_info->data = fw_info->fw->data;
	233	fw_info->size = fw_info->fw->size;
	234	fw_info->written = 0;
	235	fw_info->frame_size = 0;
	236	fw_info->cmd_result = 0;
	237
2b591257	238	schedule_work(&fw_info->work);
dece4585 CP	239
	240	fw_download_exit:
	241	mutex_unlock(&info->info_lock);
	242	return r;
	243	}
	244
	245	static int nxp_nci_fw_read_status(u8 stat)
	246	{
	247	switch (stat) {
	248	case NXP_NCI_FW_RESULT_OK:
	249	return 0;
	250	case NXP_NCI_FW_RESULT_INVALID_ADDR:
	251	return -EINVAL;
	252	case NXP_NCI_FW_RESULT_UNKNOWN_CMD:
	253	return -EINVAL;
	254	case NXP_NCI_FW_RESULT_ABORTED_CMD:
	255	return -EMSGSIZE;
	256	case NXP_NCI_FW_RESULT_ADDR_RANGE_OFL_ERROR:
	257	return -EADDRNOTAVAIL;
	258	case NXP_NCI_FW_RESULT_BUFFER_OFL_ERROR:
	259	return -ENOBUFS;
	260	case NXP_NCI_FW_RESULT_MEM_BSY:
	261	return -ENOKEY;
	262	case NXP_NCI_FW_RESULT_SIGNATURE_ERROR:
	263	return -EKEYREJECTED;
	264	case NXP_NCI_FW_RESULT_FIRMWARE_VERSION_ERROR:
	265	return -EALREADY;
	266	case NXP_NCI_FW_RESULT_PROTOCOL_ERROR:
	267	return -EPROTO;
	268	case NXP_NCI_FW_RESULT_SFWU_DEGRADED:
	269	return -EHWPOISON;
	270	case NXP_NCI_FW_RESULT_PH_STATUS_FIRST_CHUNK:
	271	return 0;
	272	case NXP_NCI_FW_RESULT_PH_STATUS_NEXT_CHUNK:
	273	return 0;
	274	case NXP_NCI_FW_RESULT_PH_STATUS_INTERNAL_ERROR_5:
	275	return -EINVAL;
	276	default:
	277	return -EIO;
	278	}
	279	}
	280
	281	static u16 nxp_nci_fw_check_crc(struct sk_buff *skb)
	282	{
	283	u16 crc, frame_crc;
	284	size_t len = skb->len - NXP_NCI_FW_CRC_LEN;
	285
	286	crc = nxp_nci_fw_crc(skb->data, len);
	287	frame_crc = get_unaligned_be16(skb->data + len);
	288
	289	return (crc ^ frame_crc);
	290	}
	291
	292	void nxp_nci_fw_recv_frame(struct nci_dev ndev, struct sk_buff skb)
	293	{
	294	struct nxp_nci_info *info = nci_get_drvdata(ndev);
	295	struct nxp_nci_fw_info *fw_info = &info->fw_info;
	296
	297	complete(&fw_info->cmd_completion);
	298
	299	if (skb) {
	300	if (nxp_nci_fw_check_crc(skb) != 0x00)
	301	fw_info->cmd_result = -EBADMSG;
	302	else
af72868b	303	fw_info->cmd_result = nxp_nci_fw_read_status((u8 )skb_pull(skb, NXP_NCI_FW_HDR_LEN));
dece4585 CP	304	kfree_skb(skb);
	305	} else {
	306	fw_info->cmd_result = -EIO;
	307	}
	308
	309	if (fw_info->fw)
	310	schedule_work(&fw_info->work);
	311	}
	312	EXPORT_SYMBOL(nxp_nci_fw_recv_frame);