| .. | .. |
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| 1 | +/* SPDX-License-Identifier: GPL-2.0-or-later */ |
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| 1 | 2 | /* |
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| 2 | 3 | * Driver for NXP PN533 NFC Chip |
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| 3 | 4 | * |
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| 4 | 5 | * Copyright (C) 2011 Instituto Nokia de Tecnologia |
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| 5 | 6 | * Copyright (C) 2012-2013 Tieto Poland |
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| 6 | | - * |
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| 7 | | - * This program is free software; you can redistribute it and/or modify |
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| 8 | | - * it under the terms of the GNU General Public License as published by |
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| 9 | | - * the Free Software Foundation; either version 2 of the License, or |
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| 10 | | - * (at your option) any later version. |
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| 11 | | - * |
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| 12 | | - * This program is distributed in the hope that it will be useful, |
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| 13 | | - * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 14 | | - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 15 | | - * GNU General Public License for more details. |
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| 16 | | - * |
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| 17 | | - * You should have received a copy of the GNU General Public License |
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| 18 | | - * along with this program; if not, see <http://www.gnu.org/licenses/>. |
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| 19 | 7 | */ |
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| 20 | 8 | |
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| 21 | | -#define PN533_DEVICE_STD 0x1 |
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| 22 | | -#define PN533_DEVICE_PASORI 0x2 |
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| 23 | | -#define PN533_DEVICE_ACR122U 0x3 |
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| 24 | | -#define PN533_DEVICE_PN532 0x4 |
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| 9 | +#define PN533_DEVICE_STD 0x1 |
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| 10 | +#define PN533_DEVICE_PASORI 0x2 |
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| 11 | +#define PN533_DEVICE_ACR122U 0x3 |
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| 12 | +#define PN533_DEVICE_PN532 0x4 |
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| 13 | +#define PN533_DEVICE_PN532_AUTOPOLL 0x5 |
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| 25 | 14 | |
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| 26 | 15 | #define PN533_ALL_PROTOCOLS (NFC_PROTO_JEWEL_MASK | NFC_PROTO_MIFARE_MASK |\ |
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| 27 | 16 | NFC_PROTO_FELICA_MASK | NFC_PROTO_ISO14443_MASK |\ |
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| .. | .. |
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| 55 | 44 | |
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| 56 | 45 | /* Preamble (1), SoPC (2), ACK Code (2), Postamble (1) */ |
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| 57 | 46 | #define PN533_STD_FRAME_ACK_SIZE 6 |
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| 47 | +/* |
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| 48 | + * Preamble (1), SoPC (2), Packet Length (1), Packet Length Checksum (1), |
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| 49 | + * Specific Application Level Error Code (1) , Postamble (1) |
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| 50 | + */ |
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| 51 | +#define PN533_STD_ERROR_FRAME_SIZE 8 |
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| 58 | 52 | #define PN533_STD_FRAME_CHECKSUM(f) (f->data[f->datalen]) |
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| 59 | 53 | #define PN533_STD_FRAME_POSTAMBLE(f) (f->data[f->datalen + 1]) |
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| 60 | 54 | /* Half start code (3), LEN (4) should be 0xffff for extended frame */ |
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| .. | .. |
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| 82 | 76 | #define PN533_CMD_IN_ATR 0x50 |
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| 83 | 77 | #define PN533_CMD_IN_RELEASE 0x52 |
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| 84 | 78 | #define PN533_CMD_IN_JUMP_FOR_DEP 0x56 |
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| 79 | +#define PN533_CMD_IN_AUTOPOLL 0x60 |
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| 85 | 80 | |
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| 86 | 81 | #define PN533_CMD_TG_INIT_AS_TARGET 0x8c |
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| 87 | 82 | #define PN533_CMD_TG_GET_DATA 0x86 |
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| .. | .. |
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| 96 | 91 | #define PN533_CMD_MI_MASK 0x40 |
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| 97 | 92 | #define PN533_CMD_RET_SUCCESS 0x00 |
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| 98 | 93 | |
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| 94 | +#define PN533_FRAME_DATALEN_ACK 0x00 |
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| 95 | +#define PN533_FRAME_DATALEN_ERROR 0x01 |
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| 96 | +#define PN533_FRAME_DATALEN_EXTENDED 0xFF |
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| 99 | 97 | |
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| 100 | 98 | enum pn533_protocol_type { |
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| 101 | 99 | PN533_PROTO_REQ_ACK_RESP = 0, |
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| .. | .. |
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| 219 | 217 | struct sk_buff *out); |
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| 220 | 218 | int (*send_ack)(struct pn533 *dev, gfp_t flags); |
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| 221 | 219 | void (*abort_cmd)(struct pn533 *priv, gfp_t flags); |
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| 220 | + /* |
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| 221 | + * dev_up and dev_down are optional. |
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| 222 | + * They are used to inform the phy layer that the nfc chip |
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| 223 | + * is going to be really used very soon. The phy layer can then |
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| 224 | + * bring up it's interface to the chip and have it suspended for power |
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| 225 | + * saving reasons otherwise. |
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| 226 | + */ |
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| 227 | + int (*dev_up)(struct pn533 *priv); |
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| 228 | + int (*dev_down)(struct pn533 *priv); |
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| 222 | 229 | }; |
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| 223 | 230 | |
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| 224 | 231 | |
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| 225 | | -struct pn533 *pn533_register_device(u32 device_type, |
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| 226 | | - u32 protocols, |
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| 232 | +struct pn533 *pn53x_common_init(u32 device_type, |
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| 227 | 233 | enum pn533_protocol_type protocol_type, |
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| 228 | 234 | void *phy, |
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| 229 | 235 | struct pn533_phy_ops *phy_ops, |
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| 230 | 236 | struct pn533_frame_ops *fops, |
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| 231 | | - struct device *dev, |
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| 232 | | - struct device *parent); |
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| 237 | + struct device *dev); |
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| 233 | 238 | |
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| 234 | 239 | int pn533_finalize_setup(struct pn533 *dev); |
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| 235 | | -void pn533_unregister_device(struct pn533 *priv); |
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| 240 | +void pn53x_common_clean(struct pn533 *priv); |
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| 236 | 241 | void pn533_recv_frame(struct pn533 *dev, struct sk_buff *skb, int status); |
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| 242 | +int pn532_i2c_nfc_alloc(struct pn533 *priv, u32 protocols, |
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| 243 | + struct device *parent); |
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| 244 | +int pn53x_register_nfc(struct pn533 *priv, u32 protocols, |
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| 245 | + struct device *parent); |
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| 246 | +void pn53x_unregister_nfc(struct pn533 *priv); |
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| 237 | 247 | |
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| 238 | 248 | bool pn533_rx_frame_is_cmd_response(struct pn533 *dev, void *frame); |
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| 239 | 249 | bool pn533_rx_frame_is_ack(void *_frame); |
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