projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 68957303 CR |
1 | /* |
| 2 | * Copyright (C) 2014 STMicroelectronics SAS. All rights reserved. | |
| 3 | * | |
| 4 | * This program is free software; you can redistribute it and/or modify it | |
| 5 | * under the terms and conditions of the GNU General Public License, | |
| 6 | * version 2, as published by the Free Software Foundation. | |
| 7 | * | |
| 8 | * This program is distributed in the hope that it will be useful, | |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 11 | * GNU General Public License for more details. | |
| 12 | * | |
| 13 | * You should have received a copy of the GNU General Public License | |
| 14 | * along with this program; if not, see <http://www.gnu.org/licenses/>. | |
| 15 | */ | |
| 16 | ||
| 17 | #ifndef __LOCAL_ST21NFCA_H_ | |
| 18 | #define __LOCAL_ST21NFCA_H_ | |
| 19 | ||
| 20 | #include <net/nfc/hci.h> | |
| 21 | ||
| 22 | #define HCI_MODE 0 | |
| 23 | ||
| 24 | /* framing in HCI mode */ | |
| 25 | #define ST21NFCA_SOF_EOF_LEN 2 | |
| 26 | ||
| 27 | /* Almost every time value is 0 */ | |
| 28 | #define ST21NFCA_HCI_LLC_LEN 1 | |
| 29 | ||
| 30 | /* Size in worst case : | |
| 31 | * In normal case CRC len = 2 but byte stuffing | |
| 32 | * may appear in case one CRC byte = ST21NFCA_SOF_EOF | |
| 33 | */ | |
| 34 | #define ST21NFCA_HCI_LLC_CRC 4 | |
| 35 | ||
| 36 | #define ST21NFCA_HCI_LLC_LEN_CRC (ST21NFCA_SOF_EOF_LEN + \ | |
| 37 | ST21NFCA_HCI_LLC_LEN + \ | |
| 38 | ST21NFCA_HCI_LLC_CRC) | |
| 39 | #define ST21NFCA_HCI_LLC_MIN_SIZE (1 + ST21NFCA_HCI_LLC_LEN_CRC) | |
| 40 | ||
| 41 | /* Worst case when adding byte stuffing between each byte */ | |
| 42 | #define ST21NFCA_HCI_LLC_MAX_PAYLOAD 29 | |
| 43 | #define ST21NFCA_HCI_LLC_MAX_SIZE (ST21NFCA_HCI_LLC_LEN_CRC + 1 + \ | |
| 44 | ST21NFCA_HCI_LLC_MAX_PAYLOAD) | |
| 45 | ||
| 46 | #define DRIVER_DESC "HCI NFC driver for ST21NFCA" | |
| 47 | ||
| 48 | #define ST21NFCA_HCI_MODE 0 | |
| 49 | ||
| 50 | #define ST21NFCA_NUM_DEVICES 256 | |
| 51 | ||
| 52 | int st21nfca_hci_probe(void *phy_id, struct nfc_phy_ops *phy_ops, | |
| 53 | char *llc_name, int phy_headroom, int phy_tailroom, | |
| 54 | int phy_payload, struct nfc_hci_dev **hdev); | |
| 55 | void st21nfca_hci_remove(struct nfc_hci_dev *hdev); | |
| 56 | ||
| 57 | enum st21nfca_state { | |
| 58 | ST21NFCA_ST_COLD, | |
| 59 | ST21NFCA_ST_READY, | |
| 60 | }; | |
| 61 | ||
| 62 | struct st21nfca_hci_info { | |
| 63 | struct nfc_phy_ops *phy_ops; | |
| 64 | void *phy_id; | |
| 65 | ||
| 66 | struct nfc_hci_dev *hdev; | |
| 67 | ||
| 68 | enum st21nfca_state state; | |
| 69 | ||
| 70 | struct mutex info_lock; | |
| 71 | ||
| 72 | int async_cb_type; | |
| 73 | data_exchange_cb_t async_cb; | |
| 74 | void *async_cb_context; | |
| 75 | ||
| 76 | } __packed; | |
| 77 | ||
| 78 | /* Reader RF commands */ | |
| 79 | #define ST21NFCA_WR_XCHG_DATA 0x10 | |
| 80 | ||
| 81 | #define ST21NFCA_RF_READER_F_GATE 0x14 | |
| 82 | #define ST21NFCA_RF_READER_F_DATARATE 0x01 | |
| 83 | #define ST21NFCA_RF_READER_F_DATARATE_106 0x01 | |
| 84 | #define ST21NFCA_RF_READER_F_DATARATE_212 0x02 | |
| 85 | #define ST21NFCA_RF_READER_F_DATARATE_424 0x04 | |
| 86 | ||
| 87 | #endif /* __LOCAL_ST21NFCA_H_ */ |