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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 | /* SPDX-License-Identifier: GPL-2.0-only */ /* * NCI based Driver for STMicroelectronics NFC Chip * * Copyright (C) 2014 STMicroelectronics SAS. All rights reserved. */ #ifndef __LOCAL_ST_NCI_H_ #define __LOCAL_ST_NCI_H_ #include "ndlc.h" /* Define private flags: */ #define ST_NCI_RUNNING 1 #define ST_NCI_CORE_PROP 0x01 #define ST_NCI_SET_NFC_MODE 0x02 /* * ref ISO7816-3 chap 8.1. the initial character TS is followed by a * sequence of at most 32 characters. */ #define ST_NCI_ESE_MAX_LENGTH 33 #define ST_NCI_DEVICE_MGNT_GATE 0x01 #define ST_NCI_VENDOR_OUI 0x0080E1 /* STMicroelectronics */ #define ST_NCI_FACTORY_MODE 2 struct nci_mode_set_cmd { u8 cmd_type; u8 mode; } __packed; struct nci_mode_set_rsp { u8 status; } __packed; struct st_nci_se_status { bool is_ese_present; bool is_uicc_present; }; struct st_nci_se_info { struct st_nci_se_status *se_status; u8 atr[ST_NCI_ESE_MAX_LENGTH]; struct completion req_completion; struct timer_list bwi_timer; int wt_timeout; /* in msecs */ bool bwi_active; struct timer_list se_active_timer; bool se_active; bool xch_error; se_io_cb_t cb; void *cb_context; }; /** * enum nfc_vendor_cmds - supported nfc vendor commands * * @FACTORY_MODE: Allow to set the driver into a mode where no secure element * are activated. It does not consider any NFC_ATTR_VENDOR_DATA. * @HCI_CLEAR_ALL_PIPES: Allow to execute a HCI clear all pipes command. * It does not consider any NFC_ATTR_VENDOR_DATA. * @HCI_DM_PUT_DATA: Allow to configure specific CLF registry as for example * RF trimmings or low level drivers configurations (I2C, SPI, SWP). * @HCI_DM_UPDATE_AID: Allow to configure an AID routing into the CLF routing * table following RF technology, CLF mode or protocol. * @HCI_DM_GET_INFO: Allow to retrieve CLF information. * @HCI_DM_GET_DATA: Allow to retrieve CLF configurable data such as low * level drivers configurations or RF trimmings. * @HCI_DM_DIRECT_LOAD: Allow to load a firmware into the CLF. A complete * packet can be more than 8KB. * @HCI_DM_RESET: Allow to run a CLF reset in order to "commit" CLF * configuration changes without CLF power off. * @HCI_GET_PARAM: Allow to retrieve an HCI CLF parameter (for example the * white list). * @HCI_DM_FIELD_GENERATOR: Allow to generate different kind of RF * technology. When using this command to anti-collision is done. * @LOOPBACK: Allow to echo a command and test the Dh to CLF connectivity. * @HCI_DM_VDC_MEASUREMENT_VALUE: Allow to measure the field applied on the * CLF antenna. A value between 0 and 0x0f is returned. 0 is maximum. * @HCI_DM_FWUPD_START: Allow to put CLF into firmware update mode. It is a * specific CLF command as there is no GPIO for this. * @HCI_DM_FWUPD_END: Allow to complete firmware update. * @HCI_DM_VDC_VALUE_COMPARISON: Allow to compare the field applied on the * CLF antenna to a reference value. * @MANUFACTURER_SPECIFIC: Allow to retrieve manufacturer specific data * received during a NCI_CORE_INIT_CMD. */ enum nfc_vendor_cmds { FACTORY_MODE, HCI_CLEAR_ALL_PIPES, HCI_DM_PUT_DATA, HCI_DM_UPDATE_AID, HCI_DM_GET_INFO, HCI_DM_GET_DATA, HCI_DM_DIRECT_LOAD, HCI_DM_RESET, HCI_GET_PARAM, HCI_DM_FIELD_GENERATOR, LOOPBACK, HCI_DM_FWUPD_START, HCI_DM_FWUPD_END, HCI_DM_VDC_MEASUREMENT_VALUE, HCI_DM_VDC_VALUE_COMPARISON, MANUFACTURER_SPECIFIC, }; struct st_nci_info { struct llt_ndlc *ndlc; unsigned long flags; struct st_nci_se_info se_info; }; void st_nci_remove(struct nci_dev *ndev); int st_nci_probe(struct llt_ndlc *ndlc, int phy_headroom, int phy_tailroom, struct st_nci_se_status *se_status); int st_nci_se_init(struct nci_dev *ndev, struct st_nci_se_status *se_status); void st_nci_se_deinit(struct nci_dev *ndev); int st_nci_discover_se(struct nci_dev *ndev); int st_nci_enable_se(struct nci_dev *ndev, u32 se_idx); int st_nci_disable_se(struct nci_dev *ndev, u32 se_idx); int st_nci_se_io(struct nci_dev *ndev, u32 se_idx, u8 *apdu, size_t apdu_length, se_io_cb_t cb, void *cb_context); int st_nci_hci_load_session(struct nci_dev *ndev); void st_nci_hci_event_received(struct nci_dev *ndev, u8 pipe, u8 event, struct sk_buff *skb); void st_nci_hci_cmd_received(struct nci_dev *ndev, u8 pipe, u8 cmd, struct sk_buff *skb); int st_nci_vendor_cmds_init(struct nci_dev *ndev); #endif /* __LOCAL_ST_NCI_H_ */ |