Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) /* SPDX-License-Identifier: GPL-2.0-or-later */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * Driver for NXP PN533 NFC Chip
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  * Copyright (C) 2011 Instituto Nokia de Tecnologia
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  * Copyright (C) 2012-2013 Tieto Poland
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #define PN533_DEVICE_STD		0x1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) #define PN533_DEVICE_PASORI		0x2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #define PN533_DEVICE_ACR122U		0x3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #define PN533_DEVICE_PN532		0x4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #define PN533_DEVICE_PN532_AUTOPOLL	0x5
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #define PN533_ALL_PROTOCOLS (NFC_PROTO_JEWEL_MASK | NFC_PROTO_MIFARE_MASK |\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) 			     NFC_PROTO_FELICA_MASK | NFC_PROTO_ISO14443_MASK |\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) 			     NFC_PROTO_NFC_DEP_MASK |\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) 			     NFC_PROTO_ISO14443_B_MASK)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) #define PN533_NO_TYPE_B_PROTOCOLS (NFC_PROTO_JEWEL_MASK | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) 				   NFC_PROTO_MIFARE_MASK | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 				   NFC_PROTO_FELICA_MASK | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) 				   NFC_PROTO_ISO14443_MASK | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) 				   NFC_PROTO_NFC_DEP_MASK)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) /* Standard pn533 frame definitions (standard and extended)*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) #define PN533_STD_FRAME_HEADER_LEN (sizeof(struct pn533_std_frame) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 					+ 2) /* data[0] TFI, data[1] CC */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) #define PN533_STD_FRAME_TAIL_LEN 2 /* data[len] DCS, data[len + 1] postamble*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) #define PN533_EXT_FRAME_HEADER_LEN (sizeof(struct pn533_ext_frame) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 					+ 2) /* data[0] TFI, data[1] CC */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) #define PN533_CMD_DATAEXCH_HEAD_LEN 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) #define PN533_CMD_DATAEXCH_DATA_MAXLEN	262
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) #define PN533_CMD_DATAFRAME_MAXLEN	240	/* max data length (send) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39)  * Max extended frame payload len, excluding TFI and CC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40)  * which are already in PN533_FRAME_HEADER_LEN.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) #define PN533_STD_FRAME_MAX_PAYLOAD_LEN 263
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) /* Preamble (1), SoPC (2), ACK Code (2), Postamble (1) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) #define PN533_STD_FRAME_ACK_SIZE 6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48)  * Preamble (1), SoPC (2), Packet Length (1), Packet Length Checksum (1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49)  * Specific Application Level Error Code (1) , Postamble (1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) #define PN533_STD_ERROR_FRAME_SIZE 8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) #define PN533_STD_FRAME_CHECKSUM(f) (f->data[f->datalen])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) #define PN533_STD_FRAME_POSTAMBLE(f) (f->data[f->datalen + 1])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) /* Half start code (3), LEN (4) should be 0xffff for extended frame */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) #define PN533_STD_IS_EXTENDED(hdr) ((hdr)->datalen == 0xFF \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 					&& (hdr)->datalen_checksum == 0xFF)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) #define PN533_EXT_FRAME_CHECKSUM(f) (f->data[be16_to_cpu(f->datalen)])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) /* start of frame */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) #define PN533_STD_FRAME_SOF 0x00FF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) /* standard frame identifier: in/out/error */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) #define PN533_STD_FRAME_IDENTIFIER(f) (f->data[0]) /* TFI */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) #define PN533_STD_FRAME_DIR_OUT 0xD4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) #define PN533_STD_FRAME_DIR_IN 0xD5
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) /* PN533 Commands */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) #define PN533_FRAME_CMD(f) (f->data[1])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) #define PN533_CMD_GET_FIRMWARE_VERSION 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) #define PN533_CMD_SAM_CONFIGURATION 0x14
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) #define PN533_CMD_RF_CONFIGURATION 0x32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) #define PN533_CMD_IN_DATA_EXCHANGE 0x40
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) #define PN533_CMD_IN_COMM_THRU     0x42
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) #define PN533_CMD_IN_LIST_PASSIVE_TARGET 0x4A
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) #define PN533_CMD_IN_ATR 0x50
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) #define PN533_CMD_IN_RELEASE 0x52
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) #define PN533_CMD_IN_JUMP_FOR_DEP 0x56
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) #define PN533_CMD_IN_AUTOPOLL 0x60
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) #define PN533_CMD_TG_INIT_AS_TARGET 0x8c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) #define PN533_CMD_TG_GET_DATA 0x86
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) #define PN533_CMD_TG_SET_DATA 0x8e
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) #define PN533_CMD_TG_SET_META_DATA 0x94
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) #define PN533_CMD_UNDEF 0xff
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) #define PN533_CMD_RESPONSE(cmd) (cmd + 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) /* PN533 Return codes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) #define PN533_CMD_RET_MASK 0x3F
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) #define PN533_CMD_MI_MASK 0x40
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) #define PN533_CMD_RET_SUCCESS 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) #define PN533_FRAME_DATALEN_ACK 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) #define PN533_FRAME_DATALEN_ERROR 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) #define PN533_FRAME_DATALEN_EXTENDED 0xFF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) enum  pn533_protocol_type {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	PN533_PROTO_REQ_ACK_RESP = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	PN533_PROTO_REQ_RESP
^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) /* Poll modulations */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) enum {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 	PN533_POLL_MOD_106KBPS_A,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 	PN533_POLL_MOD_212KBPS_FELICA,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 	PN533_POLL_MOD_424KBPS_FELICA,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 	PN533_POLL_MOD_106KBPS_JEWEL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	PN533_POLL_MOD_847KBPS_B,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	PN533_LISTEN_MOD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 	__PN533_POLL_MOD_AFTER_LAST,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) #define PN533_POLL_MOD_MAX (__PN533_POLL_MOD_AFTER_LAST - 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) struct pn533_std_frame {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 	u8 preamble;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 	__be16 start_frame;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	u8 datalen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 	u8 datalen_checksum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	u8 data[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) struct pn533_ext_frame {	/* Extended Information frame */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 	u8 preamble;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 	__be16 start_frame;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	__be16 eif_flag;	/* fixed to 0xFFFF */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 	__be16 datalen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 	u8 datalen_checksum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 	u8 data[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) struct pn533 {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 	struct nfc_dev *nfc_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	u32 device_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 	enum pn533_protocol_type protocol_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	struct sk_buff_head resp_q;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	struct sk_buff_head fragment_skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 	struct workqueue_struct	*wq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 	struct work_struct cmd_work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 	struct work_struct cmd_complete_work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 	struct delayed_work poll_work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 	struct work_struct mi_rx_work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 	struct work_struct mi_tx_work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 	struct work_struct mi_tm_rx_work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 	struct work_struct mi_tm_tx_work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	struct work_struct tg_work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 	struct work_struct rf_work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 	struct list_head cmd_queue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 	struct pn533_cmd *cmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 	u8 cmd_pending;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 	struct mutex cmd_lock;  /* protects cmd queue */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	void *cmd_complete_mi_arg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 	void *cmd_complete_dep_arg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 	struct pn533_poll_modulations *poll_mod_active[PN533_POLL_MOD_MAX + 1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 	u8 poll_mod_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 	u8 poll_mod_curr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	u8 poll_dep;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 	u32 poll_protocols;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 	u32 listen_protocols;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	struct timer_list listen_timer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 	int cancel_listen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 	u8 *gb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 	size_t gb_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 	u8 tgt_available_prots;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 	u8 tgt_active_prot;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 	u8 tgt_mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 	struct pn533_frame_ops *ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 	struct device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 	void *phy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 	struct pn533_phy_ops *phy_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) typedef int (*pn533_send_async_complete_t) (struct pn533 *dev, void *arg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 					struct sk_buff *resp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) struct pn533_cmd {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 	struct list_head queue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 	u8 code;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 	int status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 	struct sk_buff *req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 	struct sk_buff *resp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 	pn533_send_async_complete_t  complete_cb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 	void *complete_cb_context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) struct pn533_frame_ops {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 	void (*tx_frame_init)(void *frame, u8 cmd_code);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 	void (*tx_frame_finish)(void *frame);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 	void (*tx_update_payload_len)(void *frame, int len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 	int tx_header_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 	int tx_tail_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 	bool (*rx_is_frame_valid)(void *frame, struct pn533 *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 	bool (*rx_frame_is_ack)(void *frame);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 	int (*rx_frame_size)(void *frame);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 	int rx_header_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 	int rx_tail_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 	int max_payload_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 	u8 (*get_cmd_code)(void *frame);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) struct pn533_phy_ops {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 	int (*send_frame)(struct pn533 *priv,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 			  struct sk_buff *out);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 	int (*send_ack)(struct pn533 *dev, gfp_t flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	void (*abort_cmd)(struct pn533 *priv, gfp_t flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 	 * dev_up and dev_down are optional.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 	 * They are used to inform the phy layer that the nfc chip
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 	 * is going to be really used very soon. The phy layer can then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 	 * bring up it's interface to the chip and have it suspended for power
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 	 * saving reasons otherwise.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 	int (*dev_up)(struct pn533 *priv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 	int (*dev_down)(struct pn533 *priv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) struct pn533 *pn53x_common_init(u32 device_type,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 				enum pn533_protocol_type protocol_type,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 				void *phy,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 				struct pn533_phy_ops *phy_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 				struct pn533_frame_ops *fops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 				struct device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) int pn533_finalize_setup(struct pn533 *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) void pn53x_common_clean(struct pn533 *priv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) void pn533_recv_frame(struct pn533 *dev, struct sk_buff *skb, int status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) int pn532_i2c_nfc_alloc(struct pn533 *priv, u32 protocols,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 			struct device *parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) int pn53x_register_nfc(struct pn533 *priv, u32 protocols,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 			struct device *parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) void pn53x_unregister_nfc(struct pn533 *priv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) bool pn533_rx_frame_is_cmd_response(struct pn533 *dev, void *frame);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) bool pn533_rx_frame_is_ack(void *_frame);