static int st21nfca_hci_ready(struct nfc_hci_dev *hdev) { struct sk_buff *skb; u8 param; int r; param = NFC_HCI_UICC_HOST_ID; r = nfc_hci_set_param(hdev, NFC_HCI_ADMIN_GATE, NFC_HCI_ADMIN_WHITELIST, ¶m, 1); if (r < 0) return r; /* Set NFC_MODE in device management gate to enable */ r = nfc_hci_get_param(hdev, ST21NFCA_DEVICE_MGNT_GATE, ST21NFCA_NFC_MODE, &skb); if (r < 0) return r; if (skb->data[0] == 0) { kfree_skb(skb); param = 1; r = nfc_hci_set_param(hdev, ST21NFCA_DEVICE_MGNT_GATE, ST21NFCA_NFC_MODE, ¶m, 1); if (r < 0) return r; } r = nfc_hci_send_event(hdev, NFC_HCI_RF_READER_A_GATE, NFC_HCI_EVT_END_OPERATION, NULL, 0); if (r < 0) return r; r = nfc_hci_get_param(hdev, NFC_HCI_ID_MGMT_GATE, NFC_HCI_ID_MGMT_VERSION_SW, &skb); if (r < 0) return r; if (skb->len != FULL_VERSION_LEN) { kfree_skb(skb); return -EINVAL; } print_hex_dump(KERN_DEBUG, "FULL VERSION SOFTWARE INFO: ", DUMP_PREFIX_NONE, 16, 1, skb->data, FULL_VERSION_LEN, false); kfree_skb(skb); return 0; }
static int st21nfca_get_iso15693_inventory(struct nfc_hci_dev *hdev, struct nfc_target *target) { int r; struct sk_buff *inventory_skb = NULL; r = nfc_hci_get_param(hdev, ST21NFCA_RF_READER_ISO15693_GATE, ST21NFCA_RF_READER_ISO15693_INVENTORY, &inventory_skb); if (r < 0) goto exit; skb_pull(inventory_skb, 2); if (inventory_skb->len == 0 || inventory_skb->len > NFC_ISO15693_UID_MAXSIZE) { r = -EPROTO; goto exit; } memcpy(target->iso15693_uid, inventory_skb->data, inventory_skb->len); target->iso15693_dsfid = inventory_skb->data[1]; target->is_iso15693 = 1; exit: kfree_skb(inventory_skb); return r; }
static int microread_dep_link_up(struct nfc_hci_dev *hdev, struct nfc_target *target, u8 comm_mode, u8 *gb, size_t gb_len) { struct sk_buff *rgb_skb = NULL; int r; r = nfc_hci_get_param(hdev, target->hci_reader_gate, MICROREAD_PAR_P2P_INITIATOR_GT, &rgb_skb); if (r < 0) return r; if (rgb_skb->len == 0 || rgb_skb->len > NFC_GB_MAXSIZE) { r = -EPROTO; goto exit; } r = nfc_set_remote_general_bytes(hdev->ndev, rgb_skb->data, rgb_skb->len); if (r == 0) r = nfc_dep_link_is_up(hdev->ndev, target->idx, comm_mode, NFC_RF_INITIATOR); exit: kfree_skb(rgb_skb); return r; }
static int pn544_hci_dep_link_up(struct nfc_hci_dev *hdev, struct nfc_target *target, u8 comm_mode, u8 *gb, size_t gb_len) { struct sk_buff *rgb_skb = NULL; int r; r = nfc_hci_get_param(hdev, target->hci_reader_gate, PN544_DEP_ATR_RES, &rgb_skb); if (r < 0) return r; if (rgb_skb->len == 0 || rgb_skb->len > NFC_GB_MAXSIZE) { r = -EPROTO; goto exit; } print_hex_dump(KERN_DEBUG, "remote gb: ", DUMP_PREFIX_OFFSET, 16, 1, rgb_skb->data, rgb_skb->len, true); r = nfc_set_remote_general_bytes(hdev->ndev, rgb_skb->data, rgb_skb->len); if (r == 0) r = nfc_dep_link_is_up(hdev->ndev, target->idx, comm_mode, NFC_RF_INITIATOR); exit: kfree_skb(rgb_skb); return r; }
/* * Returns: * <= 0: driver handled the event, skb consumed * 1: driver does not handle the event, please do standard processing */ static int pn544_hci_event_received(struct nfc_hci_dev *hdev, u8 gate, u8 event, struct sk_buff *skb) { struct sk_buff *rgb_skb = NULL; int r; pr_debug("hci event %d", event); switch (event) { case PN544_HCI_EVT_ACTIVATED: if (gate == PN544_RF_READER_NFCIP1_INITIATOR_GATE) { r = nfc_hci_target_discovered(hdev, gate); } else if (gate == PN544_RF_READER_NFCIP1_TARGET_GATE) { r = nfc_hci_get_param(hdev, gate, PN544_DEP_ATR_REQ, &rgb_skb); if (r < 0) goto exit; r = nfc_tm_activated(hdev->ndev, NFC_PROTO_NFC_DEP_MASK, NFC_COMM_PASSIVE, rgb_skb->data, rgb_skb->len); kfree_skb(rgb_skb); } else { r = -EINVAL; } break; case PN544_HCI_EVT_DEACTIVATED: r = nfc_hci_send_event(hdev, gate, NFC_HCI_EVT_END_OPERATION, NULL, 0); break; case PN544_HCI_EVT_RCV_DATA: if (skb->len < 2) { r = -EPROTO; goto exit; } if (skb->data[0] != 0) { pr_debug("data0 %d", skb->data[0]); r = -EPROTO; goto exit; } skb_pull(skb, 2); return nfc_tm_data_received(hdev->ndev, skb); default: return 1; } exit: kfree_skb(skb); return r; }
static int st21nfca_get_iso14443_3_sak(struct nfc_hci_dev *hdev, u8 *sak) { int r; struct sk_buff *sak_skb = NULL; r = nfc_hci_get_param(hdev, ST21NFCA_RF_READER_14443_3_A_GATE, ST21NFCA_RF_READER_14443_3_A_SAK, &sak_skb); if (r < 0) goto exit; if (sak_skb->len != 1) { r = -EPROTO; goto exit; } *sak = sak_skb->data[0]; exit: kfree_skb(sak_skb); return r; }
static int st21nfca_get_iso14443_3_atqa(struct nfc_hci_dev *hdev, u16 *atqa) { int r; struct sk_buff *atqa_skb = NULL; r = nfc_hci_get_param(hdev, ST21NFCA_RF_READER_14443_3_A_GATE, ST21NFCA_RF_READER_14443_3_A_ATQA, &atqa_skb); if (r < 0) goto exit; if (atqa_skb->len != 2) { r = -EPROTO; goto exit; } *atqa = be16_to_cpu(*(__be16 *) atqa_skb->data); exit: kfree_skb(atqa_skb); return r; }
static int st21nfca_get_iso14443_3_uid(struct nfc_hci_dev *hdev, u8 *uid, int *len) { int r; struct sk_buff *uid_skb = NULL; r = nfc_hci_get_param(hdev, ST21NFCA_RF_READER_14443_3_A_GATE, ST21NFCA_RF_READER_14443_3_A_UID, &uid_skb); if (r < 0) goto exit; if (uid_skb->len == 0 || uid_skb->len > NFC_NFCID1_MAXSIZE) { r = -EPROTO; goto exit; } memcpy(uid, uid_skb->data, uid_skb->len); *len = uid_skb->len; exit: kfree_skb(uid_skb); return r; }
static int st21nfca_hci_complete_target_discovered(struct nfc_hci_dev *hdev, u8 gate, struct nfc_target *target) { int r; struct sk_buff *nfcid_skb = NULL; if (gate == ST21NFCA_RF_READER_F_GATE) { r = nfc_hci_get_param(hdev, ST21NFCA_RF_READER_F_GATE, ST21NFCA_RF_READER_F_NFCID2, &nfcid_skb); if (r < 0) goto exit; if (nfcid_skb->len > NFC_SENSF_RES_MAXSIZE) { r = -EPROTO; goto exit; } /* * - After the recepton of polling response for type F frame * at 212 or 424 Kbit/s, NFCID2 registry parameters will be * updated. * - After the reception of SEL_RES with NFCIP-1 compliant bit * set for type A frame NFCID1 will be updated */ if (nfcid_skb->len > 0) { /* P2P in type F */ memcpy(target->sensf_res, nfcid_skb->data, nfcid_skb->len); target->sensf_res_len = nfcid_skb->len; /* NFC Forum Digital Protocol Table 44 */ if (target->sensf_res[0] == 0x01 && target->sensf_res[1] == 0xfe) target->supported_protocols = NFC_PROTO_NFC_DEP_MASK; else target->supported_protocols = NFC_PROTO_FELICA_MASK; } else { kfree_skb(nfcid_skb); /* P2P in type A */ r = nfc_hci_get_param(hdev, ST21NFCA_RF_READER_F_GATE, ST21NFCA_RF_READER_F_NFCID1, &nfcid_skb); if (r < 0) goto exit; if (nfcid_skb->len > NFC_NFCID1_MAXSIZE) { r = -EPROTO; goto exit; } memcpy(target->sensf_res, nfcid_skb->data, nfcid_skb->len); target->sensf_res_len = nfcid_skb->len; target->supported_protocols = NFC_PROTO_NFC_DEP_MASK; } target->hci_reader_gate = ST21NFCA_RF_READER_F_GATE; } r = 1; exit: kfree_skb(nfcid_skb); return r; }
static int st21nfca_hci_start_poll(struct nfc_hci_dev *hdev, u32 im_protocols, u32 tm_protocols) { int r; u32 pol_req; u8 param[19]; struct sk_buff *datarate_skb; pr_info(DRIVER_DESC ": %s protocols 0x%x 0x%x\n", __func__, im_protocols, tm_protocols); r = nfc_hci_send_event(hdev, NFC_HCI_RF_READER_A_GATE, NFC_HCI_EVT_END_OPERATION, NULL, 0); if (r < 0) return r; if (im_protocols) { /* * enable polling according to im_protocols & tm_protocols * - CLOSE pipe according to im_protocols & tm_protocols */ if ((NFC_HCI_RF_READER_B_GATE & im_protocols) == 0) { r = nfc_hci_disconnect_gate(hdev, NFC_HCI_RF_READER_B_GATE); if (r < 0) return r; } if ((NFC_HCI_RF_READER_A_GATE & im_protocols) == 0) { r = nfc_hci_disconnect_gate(hdev, NFC_HCI_RF_READER_A_GATE); if (r < 0) return r; } if ((ST21NFCA_RF_READER_F_GATE & im_protocols) == 0) { r = nfc_hci_disconnect_gate(hdev, ST21NFCA_RF_READER_F_GATE); if (r < 0) return r; } else { hdev->gb = nfc_get_local_general_bytes(hdev->ndev, &hdev->gb_len); if (hdev->gb == NULL || hdev->gb_len == 0) { im_protocols &= ~NFC_PROTO_NFC_DEP_MASK; tm_protocols &= ~NFC_PROTO_NFC_DEP_MASK; } param[0] = ST21NFCA_RF_READER_F_DATARATE_106 | ST21NFCA_RF_READER_F_DATARATE_212 | ST21NFCA_RF_READER_F_DATARATE_424; r = nfc_hci_set_param(hdev, ST21NFCA_RF_READER_F_GATE, ST21NFCA_RF_READER_F_DATARATE, param, 1); if (r < 0) return r; pol_req = be32_to_cpu((__force __be32) ST21NFCA_RF_READER_F_POL_REQ_DEFAULT); r = nfc_hci_set_param(hdev, ST21NFCA_RF_READER_F_GATE, ST21NFCA_RF_READER_F_POL_REQ, (u8 *) &pol_req, 4); if (r < 0) return r; } if ((ST21NFCA_RF_READER_14443_3_A_GATE & im_protocols) == 0) { r = nfc_hci_disconnect_gate(hdev, ST21NFCA_RF_READER_14443_3_A_GATE); if (r < 0) return r; } if ((ST21NFCA_RF_READER_ISO15693_GATE & im_protocols) == 0) { r = nfc_hci_disconnect_gate(hdev, ST21NFCA_RF_READER_ISO15693_GATE); if (r < 0) return r; } r = nfc_hci_send_event(hdev, NFC_HCI_RF_READER_A_GATE, NFC_HCI_EVT_READER_REQUESTED, NULL, 0); if (r < 0) nfc_hci_send_event(hdev, NFC_HCI_RF_READER_A_GATE, NFC_HCI_EVT_END_OPERATION, NULL, 0); } if (tm_protocols & NFC_PROTO_NFC_DEP_MASK) { r = nfc_hci_get_param(hdev, ST21NFCA_RF_CARD_F_GATE, ST21NFCA_RF_CARD_F_DATARATE, &datarate_skb); if (r < 0) return r; /* Configure the maximum supported datarate to 424Kbps */ if (datarate_skb->len > 0 && datarate_skb->data[0] != ST21NFCA_RF_CARD_F_DATARATE_212_424) { param[0] = ST21NFCA_RF_CARD_F_DATARATE_212_424; r = nfc_hci_set_param(hdev, ST21NFCA_RF_CARD_F_GATE, ST21NFCA_RF_CARD_F_DATARATE, param, 1); if (r < 0) { kfree_skb(datarate_skb); return r; } } kfree_skb(datarate_skb); /* * Configure sens_res * * NFC Forum Digital Spec Table 7: * NFCID1 size: triple (10 bytes) */ param[0] = 0x00; param[1] = 0x08; r = nfc_hci_set_param(hdev, ST21NFCA_RF_CARD_F_GATE, ST21NFCA_RF_CARD_F_SENS_RES, param, 2); if (r < 0) return r; /* * Configure sel_res * * NFC Forum Digistal Spec Table 17: * b3 set to 0b (value b7-b6): * - 10b: Configured for NFC-DEP Protocol */ param[0] = 0x40; r = nfc_hci_set_param(hdev, ST21NFCA_RF_CARD_F_GATE, ST21NFCA_RF_CARD_F_SEL_RES, param, 1); if (r < 0) return r; /* Configure NFCID1 Random uid */ r = nfc_hci_set_param(hdev, ST21NFCA_RF_CARD_F_GATE, ST21NFCA_RF_CARD_F_NFCID1, NULL, 0); if (r < 0) return r; /* Configure NFCID2_LIST */ /* System Code */ param[0] = 0x00; param[1] = 0x00; /* NFCID2 */ param[2] = 0x01; param[3] = 0xfe; param[4] = 'S'; param[5] = 'T'; param[6] = 'M'; param[7] = 'i'; param[8] = 'c'; param[9] = 'r'; /* 8 byte Pad bytes used for polling respone frame */ /* * Configuration byte: * - bit 0: define the default NFCID2 entry used when the * system code is equal to 'FFFF' * - bit 1: use a random value for lowest 6 bytes of * NFCID2 value * - bit 2: ignore polling request frame if request code * is equal to '01' * - Other bits are RFU */ param[18] = 0x01; r = nfc_hci_set_param(hdev, ST21NFCA_RF_CARD_F_GATE, ST21NFCA_RF_CARD_F_NFCID2_LIST, param, 19); if (r < 0) return r; param[0] = 0x02; r = nfc_hci_set_param(hdev, ST21NFCA_RF_CARD_F_GATE, ST21NFCA_RF_CARD_F_MODE, param, 1); } return r; }
static int st21nfca_hci_ready(struct nfc_hci_dev *hdev) { struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev); struct sk_buff *skb; u8 param; u8 white_list[2]; int wl_size = 0; int r; if (info->se_status->is_uicc_present) white_list[wl_size++] = NFC_HCI_UICC_HOST_ID; if (info->se_status->is_ese_present) white_list[wl_size++] = ST21NFCA_ESE_HOST_ID; if (wl_size) { r = nfc_hci_set_param(hdev, NFC_HCI_ADMIN_GATE, NFC_HCI_ADMIN_WHITELIST, (u8 *) &white_list, wl_size); if (r < 0) return r; } /* Set NFC_MODE in device management gate to enable */ r = nfc_hci_get_param(hdev, ST21NFCA_DEVICE_MGNT_GATE, ST21NFCA_NFC_MODE, &skb); if (r < 0) return r; param = skb->data[0]; kfree_skb(skb); if (param == 0) { param = 1; r = nfc_hci_set_param(hdev, ST21NFCA_DEVICE_MGNT_GATE, ST21NFCA_NFC_MODE, ¶m, 1); if (r < 0) return r; } r = nfc_hci_send_event(hdev, NFC_HCI_RF_READER_A_GATE, NFC_HCI_EVT_END_OPERATION, NULL, 0); if (r < 0) return r; r = nfc_hci_get_param(hdev, NFC_HCI_ID_MGMT_GATE, NFC_HCI_ID_MGMT_VERSION_SW, &skb); if (r < 0) return r; if (skb->len != FULL_VERSION_LEN) { kfree_skb(skb); return -EINVAL; } print_hex_dump(KERN_DEBUG, "FULL VERSION SOFTWARE INFO: ", DUMP_PREFIX_NONE, 16, 1, skb->data, FULL_VERSION_LEN, false); kfree_skb(skb); return 0; }
static int pn544_hci_complete_target_discovered(struct nfc_hci_dev *hdev, u8 gate, struct nfc_target *target) { struct sk_buff *uid_skb; int r = 0; if (gate == PN544_RF_READER_NFCIP1_INITIATOR_GATE) return r; if (target->supported_protocols & NFC_PROTO_NFC_DEP_MASK) { r = nfc_hci_send_cmd(hdev, PN544_RF_READER_NFCIP1_INITIATOR_GATE, PN544_HCI_CMD_CONTINUE_ACTIVATION, NULL, 0, NULL); if (r < 0) return r; target->hci_reader_gate = PN544_RF_READER_NFCIP1_INITIATOR_GATE; } else if (target->supported_protocols & NFC_PROTO_MIFARE_MASK) { if (target->nfcid1_len != 4 && target->nfcid1_len != 7 && target->nfcid1_len != 10) return -EPROTO; r = nfc_hci_send_cmd(hdev, NFC_HCI_RF_READER_A_GATE, PN544_RF_READER_CMD_ACTIVATE_NEXT, target->nfcid1, target->nfcid1_len, NULL); } else if (target->supported_protocols & NFC_PROTO_FELICA_MASK) { r = nfc_hci_get_param(hdev, PN544_RF_READER_F_GATE, PN544_FELICA_ID, &uid_skb); if (r < 0) return r; if (uid_skb->len != 8) { kfree_skb(uid_skb); return -EPROTO; } /* Type F NFC-DEP IDm has prefix 0x01FE */ if ((uid_skb->data[0] == 0x01) && (uid_skb->data[1] == 0xfe)) { kfree_skb(uid_skb); r = nfc_hci_send_cmd(hdev, PN544_RF_READER_NFCIP1_INITIATOR_GATE, PN544_HCI_CMD_CONTINUE_ACTIVATION, NULL, 0, NULL); if (r < 0) return r; target->supported_protocols = NFC_PROTO_NFC_DEP_MASK; target->hci_reader_gate = PN544_RF_READER_NFCIP1_INITIATOR_GATE; } else { r = nfc_hci_send_cmd(hdev, PN544_RF_READER_F_GATE, PN544_RF_READER_CMD_ACTIVATE_NEXT, uid_skb->data, uid_skb->len, NULL); kfree_skb(uid_skb); } } else if (target->supported_protocols & NFC_PROTO_ISO14443_MASK) { /* * TODO: maybe other ISO 14443 require some kind of continue * activation, but for now we've seen only this one below. */ if (target->sens_res == 0x4403) /* Type 4 Mifare DESFire */ r = nfc_hci_send_cmd(hdev, NFC_HCI_RF_READER_A_GATE, PN544_RF_READER_A_CMD_CONTINUE_ACTIVATION, NULL, 0, NULL); } return r; }
static int pn544_hci_ready(struct nfc_hci_dev *hdev) { struct sk_buff *skb; static struct hw_config { u8 adr[2]; u8 value; } hw_config[] = { {{0x9f, 0x9a}, 0x00}, {{0x98, 0x10}, 0xbc}, {{0x9e, 0x71}, 0x00}, {{0x98, 0x09}, 0x00}, {{0x9e, 0xb4}, 0x00}, {{0x9c, 0x01}, 0x08}, {{0x9e, 0xaa}, 0x01}, {{0x9b, 0xd1}, 0x0d}, {{0x9b, 0xd2}, 0x24}, {{0x9b, 0xd3}, 0x0a}, {{0x9b, 0xd4}, 0x22}, {{0x9b, 0xd5}, 0x08}, {{0x9b, 0xd6}, 0x1e}, {{0x9b, 0xdd}, 0x1c}, {{0x9b, 0x84}, 0x13}, {{0x99, 0x81}, 0x7f}, {{0x99, 0x31}, 0x70}, {{0x98, 0x00}, 0x3f}, {{0x9f, 0x09}, 0x00}, {{0x9f, 0x0a}, 0x05}, {{0x9e, 0xd1}, 0xa1}, {{0x99, 0x23}, 0x00}, {{0x9e, 0x74}, 0x80}, {{0x9f, 0x28}, 0x10}, {{0x9f, 0x35}, 0x14}, {{0x9f, 0x36}, 0x60}, {{0x9c, 0x31}, 0x00}, {{0x9c, 0x32}, 0xc8}, {{0x9c, 0x19}, 0x40}, {{0x9c, 0x1a}, 0x40}, {{0x9c, 0x0c}, 0x00}, {{0x9c, 0x0d}, 0x00}, {{0x9c, 0x12}, 0x00}, {{0x9c, 0x13}, 0x00}, {{0x98, 0xa2}, 0x0e}, {{0x98, 0x93}, 0x40}, {{0x98, 0x7d}, 0x02}, {{0x98, 0x7e}, 0x00}, {{0x9f, 0xc8}, 0x01}, }; struct hw_config *p = hw_config; int count = ARRAY_SIZE(hw_config); struct sk_buff *res_skb; u8 param[4]; int r; param[0] = 0; while (count--) { param[1] = p->adr[0]; param[2] = p->adr[1]; param[3] = p->value; r = nfc_hci_send_cmd(hdev, PN544_SYS_MGMT_GATE, PN544_WRITE, param, 4, &res_skb); if (r < 0) return r; if (res_skb->len != 1) { kfree_skb(res_skb); return -EPROTO; } if (res_skb->data[0] != p->value) { kfree_skb(res_skb); return -EIO; } kfree_skb(res_skb); p++; } param[0] = NFC_HCI_UICC_HOST_ID; r = nfc_hci_set_param(hdev, NFC_HCI_ADMIN_GATE, NFC_HCI_ADMIN_WHITELIST, param, 1); if (r < 0) return r; param[0] = 0x3d; r = nfc_hci_set_param(hdev, PN544_SYS_MGMT_GATE, PN544_SYS_MGMT_INFO_NOTIFICATION, param, 1); if (r < 0) return r; param[0] = 0x0; r = nfc_hci_set_param(hdev, NFC_HCI_RF_READER_A_GATE, PN544_RF_READER_A_AUTO_ACTIVATION, param, 1); if (r < 0) return r; r = nfc_hci_send_event(hdev, NFC_HCI_RF_READER_A_GATE, NFC_HCI_EVT_END_OPERATION, NULL, 0); if (r < 0) return r; param[0] = 0x1; r = nfc_hci_set_param(hdev, PN544_POLLING_LOOP_MGMT_GATE, PN544_PL_NFCT_DEACTIVATED, param, 1); if (r < 0) return r; param[0] = 0x0; r = nfc_hci_set_param(hdev, PN544_POLLING_LOOP_MGMT_GATE, PN544_PL_RDPHASES, param, 1); if (r < 0) return r; r = nfc_hci_get_param(hdev, NFC_HCI_ID_MGMT_GATE, PN544_ID_MGMT_FULL_VERSION_SW, &skb); if (r < 0) return r; if (skb->len != FULL_VERSION_LEN) { kfree_skb(skb); return -EINVAL; } print_hex_dump(KERN_DEBUG, "FULL VERSION SOFTWARE INFO: ", DUMP_PREFIX_NONE, 16, 1, skb->data, FULL_VERSION_LEN, false); kfree_skb(skb); return 0; }