Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * Generic driver for NXP NCI NFC chips
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  * Copyright (C) 2014  NXP Semiconductors  All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  * Author: Clément Perrochaud <clement.perrochaud@nxp.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9)  * Derived from PN544 device driver:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10)  * Copyright (C) 2012  Intel Corporation. All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include <linux/completion.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include <linux/firmware.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #include <linux/nfc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) #include <asm/unaligned.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) #include "nxp-nci.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) /* Crypto operations can take up to 30 seconds */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) #define NXP_NCI_FW_ANSWER_TIMEOUT	msecs_to_jiffies(30000)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) #define NXP_NCI_FW_CMD_RESET		0xF0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) #define NXP_NCI_FW_CMD_GETVERSION	0xF1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) #define NXP_NCI_FW_CMD_CHECKINTEGRITY	0xE0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) #define NXP_NCI_FW_CMD_WRITE		0xC0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) #define NXP_NCI_FW_CMD_READ		0xA2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) #define NXP_NCI_FW_CMD_GETSESSIONSTATE	0xF2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) #define NXP_NCI_FW_CMD_LOG		0xA7
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) #define NXP_NCI_FW_CMD_FORCE		0xD0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) #define NXP_NCI_FW_CMD_GET_DIE_ID	0xF4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) #define NXP_NCI_FW_CHUNK_FLAG	0x0400
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) #define NXP_NCI_FW_RESULT_OK				0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) #define NXP_NCI_FW_RESULT_INVALID_ADDR			0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) #define NXP_NCI_FW_RESULT_GENERIC_ERROR			0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) #define NXP_NCI_FW_RESULT_UNKNOWN_CMD			0x0B
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) #define NXP_NCI_FW_RESULT_ABORTED_CMD			0x0C
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) #define NXP_NCI_FW_RESULT_PLL_ERROR			0x0D
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) #define NXP_NCI_FW_RESULT_ADDR_RANGE_OFL_ERROR		0x1E
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) #define NXP_NCI_FW_RESULT_BUFFER_OFL_ERROR		0x1F
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) #define NXP_NCI_FW_RESULT_MEM_BSY			0x20
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) #define NXP_NCI_FW_RESULT_SIGNATURE_ERROR		0x21
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) #define NXP_NCI_FW_RESULT_FIRMWARE_VERSION_ERROR	0x24
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) #define NXP_NCI_FW_RESULT_PROTOCOL_ERROR		0x28
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) #define NXP_NCI_FW_RESULT_SFWU_DEGRADED			0x2A
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) #define NXP_NCI_FW_RESULT_PH_STATUS_FIRST_CHUNK		0x2D
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) #define NXP_NCI_FW_RESULT_PH_STATUS_NEXT_CHUNK		0x2E
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) #define NXP_NCI_FW_RESULT_PH_STATUS_INTERNAL_ERROR_5	0xC5
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) void nxp_nci_fw_work_complete(struct nxp_nci_info *info, int result)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	struct nxp_nci_fw_info *fw_info = &info->fw_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 	int r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 	if (info->phy_ops->set_mode) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 		r = info->phy_ops->set_mode(info->phy_id, NXP_NCI_MODE_COLD);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 		if (r < 0 && result == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 			result = -r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 	info->mode = NXP_NCI_MODE_COLD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 	if (fw_info->fw) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 		release_firmware(fw_info->fw);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 		fw_info->fw = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 	nfc_fw_download_done(info->ndev->nfc_dev, fw_info->name, (u32) -result);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) /* crc_ccitt cannot be used since it is computed MSB first and not LSB first */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) static u16 nxp_nci_fw_crc(u8 const *buffer, size_t len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 	u16 crc = 0xffff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 	while (len--) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 		crc = ((crc >> 8) | (crc << 8)) ^ *buffer++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 		crc ^= (crc & 0xff) >> 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 		crc ^= (crc & 0xff) << 12;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 		crc ^= (crc & 0xff) << 5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 	return crc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) static int nxp_nci_fw_send_chunk(struct nxp_nci_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 	struct nxp_nci_fw_info *fw_info = &info->fw_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 	u16 header, crc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 	struct sk_buff *skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 	size_t chunk_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 	size_t remaining_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	int r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 	skb = nci_skb_alloc(info->ndev, info->max_payload, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 	if (!skb) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 		r = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 		goto chunk_exit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	chunk_len = info->max_payload - NXP_NCI_FW_HDR_LEN - NXP_NCI_FW_CRC_LEN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 	remaining_len = fw_info->frame_size - fw_info->written;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 	if (remaining_len > chunk_len) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 		header = NXP_NCI_FW_CHUNK_FLAG;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 		chunk_len = remaining_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 		header = 0x0000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	header |= chunk_len & NXP_NCI_FW_FRAME_LEN_MASK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	put_unaligned_be16(header, skb_put(skb, NXP_NCI_FW_HDR_LEN));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 	skb_put_data(skb, fw_info->data + fw_info->written, chunk_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 	crc = nxp_nci_fw_crc(skb->data, chunk_len + NXP_NCI_FW_HDR_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	put_unaligned_be16(crc, skb_put(skb, NXP_NCI_FW_CRC_LEN));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	r = info->phy_ops->write(info->phy_id, skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	if (r >= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 		r = chunk_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 	kfree_skb(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) chunk_exit:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 	return r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) static int nxp_nci_fw_send(struct nxp_nci_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	struct nxp_nci_fw_info *fw_info = &info->fw_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 	long completion_rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	int r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 	reinit_completion(&fw_info->cmd_completion);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	if (fw_info->written == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 		fw_info->frame_size = get_unaligned_be16(fw_info->data) &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 				      NXP_NCI_FW_FRAME_LEN_MASK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 		fw_info->data += NXP_NCI_FW_HDR_LEN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 		fw_info->size -= NXP_NCI_FW_HDR_LEN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 	if (fw_info->frame_size > fw_info->size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 		return -EMSGSIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	r = nxp_nci_fw_send_chunk(info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 	if (r < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 		return r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 	fw_info->written += r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 	if (*fw_info->data == NXP_NCI_FW_CMD_RESET) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 		fw_info->cmd_result = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 		if (fw_info->fw)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 			schedule_work(&fw_info->work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 		completion_rc = wait_for_completion_interruptible_timeout(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 			&fw_info->cmd_completion, NXP_NCI_FW_ANSWER_TIMEOUT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 		if (completion_rc == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 			return -ETIMEDOUT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) void nxp_nci_fw_work(struct work_struct *work)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	struct nxp_nci_info *info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 	struct nxp_nci_fw_info *fw_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 	int r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 	fw_info = container_of(work, struct nxp_nci_fw_info, work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 	info = container_of(fw_info, struct nxp_nci_info, fw_info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 	mutex_lock(&info->info_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 	r = fw_info->cmd_result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 	if (r < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 		goto exit_work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 	if (fw_info->written == fw_info->frame_size) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 		fw_info->data += fw_info->frame_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 		fw_info->size -= fw_info->frame_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 		fw_info->written = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 	if (fw_info->size > 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 		r = nxp_nci_fw_send(info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) exit_work:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 	if (r < 0 || fw_info->size == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 		nxp_nci_fw_work_complete(info, r);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 	mutex_unlock(&info->info_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) int nxp_nci_fw_download(struct nci_dev *ndev, const char *firmware_name)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 	struct nxp_nci_info *info = nci_get_drvdata(ndev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 	struct nxp_nci_fw_info *fw_info = &info->fw_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 	int r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 	mutex_lock(&info->info_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 	if (!info->phy_ops->set_mode || !info->phy_ops->write) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 		r = -ENOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 		goto fw_download_exit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 	if (!firmware_name || firmware_name[0] == '\0') {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 		r = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 		goto fw_download_exit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	strcpy(fw_info->name, firmware_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	r = request_firmware(&fw_info->fw, firmware_name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 			     ndev->nfc_dev->dev.parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 	if (r < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 		goto fw_download_exit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 	r = info->phy_ops->set_mode(info->phy_id, NXP_NCI_MODE_FW);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 	if (r < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 		release_firmware(fw_info->fw);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 		goto fw_download_exit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 	info->mode = NXP_NCI_MODE_FW;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 	fw_info->data = fw_info->fw->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 	fw_info->size = fw_info->fw->size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 	fw_info->written = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 	fw_info->frame_size = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 	fw_info->cmd_result = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 	schedule_work(&fw_info->work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) fw_download_exit:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 	mutex_unlock(&info->info_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 	return r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) static int nxp_nci_fw_read_status(u8 stat)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 	switch (stat) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 	case NXP_NCI_FW_RESULT_OK:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 	case NXP_NCI_FW_RESULT_INVALID_ADDR:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 	case NXP_NCI_FW_RESULT_UNKNOWN_CMD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 	case NXP_NCI_FW_RESULT_ABORTED_CMD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 		return -EMSGSIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 	case NXP_NCI_FW_RESULT_ADDR_RANGE_OFL_ERROR:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 		return -EADDRNOTAVAIL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 	case NXP_NCI_FW_RESULT_BUFFER_OFL_ERROR:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 		return -ENOBUFS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 	case NXP_NCI_FW_RESULT_MEM_BSY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 		return -ENOKEY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 	case NXP_NCI_FW_RESULT_SIGNATURE_ERROR:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 		return -EKEYREJECTED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 	case NXP_NCI_FW_RESULT_FIRMWARE_VERSION_ERROR:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 		return -EALREADY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 	case NXP_NCI_FW_RESULT_PROTOCOL_ERROR:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 		return -EPROTO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 	case NXP_NCI_FW_RESULT_SFWU_DEGRADED:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 		return -EHWPOISON;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 	case NXP_NCI_FW_RESULT_PH_STATUS_FIRST_CHUNK:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 	case NXP_NCI_FW_RESULT_PH_STATUS_NEXT_CHUNK:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 	case NXP_NCI_FW_RESULT_PH_STATUS_INTERNAL_ERROR_5:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 	default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 		return -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) static u16 nxp_nci_fw_check_crc(struct sk_buff *skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 	u16 crc, frame_crc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 	size_t len = skb->len - NXP_NCI_FW_CRC_LEN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 	crc = nxp_nci_fw_crc(skb->data, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 	frame_crc = get_unaligned_be16(skb->data + len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 	return (crc ^ frame_crc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) void nxp_nci_fw_recv_frame(struct nci_dev *ndev, struct sk_buff *skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 	struct nxp_nci_info *info = nci_get_drvdata(ndev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) 	struct nxp_nci_fw_info *fw_info = &info->fw_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) 	complete(&fw_info->cmd_completion);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) 	if (skb) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) 		if (nxp_nci_fw_check_crc(skb) != 0x00)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 			fw_info->cmd_result = -EBADMSG;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) 		else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) 			fw_info->cmd_result = nxp_nci_fw_read_status(*(u8 *)skb_pull(skb, NXP_NCI_FW_HDR_LEN));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 		kfree_skb(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 		fw_info->cmd_result = -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) 	if (fw_info->fw)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) 		schedule_work(&fw_info->work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) EXPORT_SYMBOL(nxp_nci_fw_recv_frame);