Ilan Elias | 6a2968a | 2011-09-18 11:19:35 +0300 | [diff] [blame] | 1 | /* |
| 2 | * The NFC Controller Interface is the communication protocol between an |
| 3 | * NFC Controller (NFCC) and a Device Host (DH). |
| 4 | * |
| 5 | * Copyright (C) 2011 Texas Instruments, Inc. |
Frederic Danis | 8a00a61 | 2013-05-29 15:35:02 +0200 | [diff] [blame] | 6 | * Copyright (C) 2013 Intel Corporation. All rights reserved. |
Julien Lefrique | a99903e | 2014-10-21 16:52:46 +0200 | [diff] [blame] | 7 | * Copyright (C) 2014 Marvell International Ltd. |
Ilan Elias | 6a2968a | 2011-09-18 11:19:35 +0300 | [diff] [blame] | 8 | * |
| 9 | * Written by Ilan Elias <ilane@ti.com> |
| 10 | * |
| 11 | * Acknowledgements: |
| 12 | * This file is based on hci_core.h, which was written |
| 13 | * by Maxim Krasnyansky. |
| 14 | * |
| 15 | * This program is free software; you can redistribute it and/or modify |
| 16 | * it under the terms of the GNU General Public License version 2 |
| 17 | * as published by the Free Software Foundation |
| 18 | * |
| 19 | * This program is distributed in the hope that it will be useful, |
| 20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 22 | * GNU General Public License for more details. |
| 23 | * |
| 24 | * You should have received a copy of the GNU General Public License |
Jeff Kirsher | a6227e2 | 2013-12-06 09:13:40 -0800 | [diff] [blame] | 25 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
Ilan Elias | 6a2968a | 2011-09-18 11:19:35 +0300 | [diff] [blame] | 26 | * |
| 27 | */ |
| 28 | |
| 29 | #ifndef __NCI_CORE_H |
| 30 | #define __NCI_CORE_H |
| 31 | |
| 32 | #include <linux/interrupt.h> |
| 33 | #include <linux/skbuff.h> |
Vincent Cuissard | 9961127 | 2015-06-11 11:25:47 +0200 | [diff] [blame] | 34 | #include <linux/tty.h> |
Ilan Elias | 6a2968a | 2011-09-18 11:19:35 +0300 | [diff] [blame] | 35 | |
| 36 | #include <net/nfc/nfc.h> |
| 37 | #include <net/nfc/nci.h> |
| 38 | |
Ilan Elias | 8939e47 | 2012-01-18 13:16:12 +0200 | [diff] [blame] | 39 | /* NCI device flags */ |
| 40 | enum nci_flag { |
Ilan Elias | 6a2968a | 2011-09-18 11:19:35 +0300 | [diff] [blame] | 41 | NCI_INIT, |
| 42 | NCI_UP, |
Ilan Elias | 38f04c6 | 2011-09-22 11:36:19 +0300 | [diff] [blame] | 43 | NCI_DATA_EXCHANGE, |
Ilan Elias | c4bf98b | 2012-01-17 12:03:50 +0200 | [diff] [blame] | 44 | NCI_DATA_EXCHANGE_TO, |
Ilan Elias | 6a2968a | 2011-09-18 11:19:35 +0300 | [diff] [blame] | 45 | }; |
| 46 | |
Ilan Elias | 8939e47 | 2012-01-18 13:16:12 +0200 | [diff] [blame] | 47 | /* NCI device states */ |
| 48 | enum nci_state { |
| 49 | NCI_IDLE, |
| 50 | NCI_DISCOVERY, |
Ilan Elias | 019c4fb | 2012-01-18 13:16:14 +0200 | [diff] [blame] | 51 | NCI_W4_ALL_DISCOVERIES, |
| 52 | NCI_W4_HOST_SELECT, |
Ilan Elias | 8939e47 | 2012-01-18 13:16:12 +0200 | [diff] [blame] | 53 | NCI_POLL_ACTIVE, |
Julien Lefrique | a99903e | 2014-10-21 16:52:46 +0200 | [diff] [blame] | 54 | NCI_LISTEN_ACTIVE, |
| 55 | NCI_LISTEN_SLEEP, |
Ilan Elias | 8939e47 | 2012-01-18 13:16:12 +0200 | [diff] [blame] | 56 | }; |
| 57 | |
Ilan Elias | 6a2968a | 2011-09-18 11:19:35 +0300 | [diff] [blame] | 58 | /* NCI timeouts */ |
| 59 | #define NCI_RESET_TIMEOUT 5000 |
| 60 | #define NCI_INIT_TIMEOUT 5000 |
Ilan Elias | 7e03523 | 2012-08-15 11:46:22 +0300 | [diff] [blame] | 61 | #define NCI_SET_CONFIG_TIMEOUT 5000 |
Ilan Elias | 6a2968a | 2011-09-18 11:19:35 +0300 | [diff] [blame] | 62 | #define NCI_RF_DISC_TIMEOUT 5000 |
Ilan Elias | 019c4fb | 2012-01-18 13:16:14 +0200 | [diff] [blame] | 63 | #define NCI_RF_DISC_SELECT_TIMEOUT 5000 |
Ilan Elias | 11ee515 | 2012-01-08 13:43:02 +0200 | [diff] [blame] | 64 | #define NCI_RF_DEACTIVATE_TIMEOUT 30000 |
Ilan Elias | 6a2968a | 2011-09-18 11:19:35 +0300 | [diff] [blame] | 65 | #define NCI_CMD_TIMEOUT 5000 |
Ilan Elias | c4bf98b | 2012-01-17 12:03:50 +0200 | [diff] [blame] | 66 | #define NCI_DATA_TIMEOUT 700 |
Ilan Elias | 6a2968a | 2011-09-18 11:19:35 +0300 | [diff] [blame] | 67 | |
| 68 | struct nci_dev; |
| 69 | |
Robert Dolca | 22e4bd0 | 2015-10-22 12:11:39 +0300 | [diff] [blame] | 70 | struct nci_driver_ops { |
Samuel Ortiz | b6355e9 | 2015-06-06 13:16:37 +0200 | [diff] [blame] | 71 | __u16 opcode; |
| 72 | int (*rsp)(struct nci_dev *dev, struct sk_buff *skb); |
| 73 | int (*ntf)(struct nci_dev *dev, struct sk_buff *skb); |
| 74 | }; |
| 75 | |
Ilan Elias | 6a2968a | 2011-09-18 11:19:35 +0300 | [diff] [blame] | 76 | struct nci_ops { |
Christophe Ricard | c39daee | 2015-06-06 13:16:40 +0200 | [diff] [blame] | 77 | int (*init)(struct nci_dev *ndev); |
Christophe Ricard | 9e87f9a | 2014-09-13 10:28:49 +0200 | [diff] [blame] | 78 | int (*open)(struct nci_dev *ndev); |
| 79 | int (*close)(struct nci_dev *ndev); |
| 80 | int (*send)(struct nci_dev *ndev, struct sk_buff *skb); |
| 81 | int (*setup)(struct nci_dev *ndev); |
Robert Baldyga | fdf79bd | 2015-08-20 17:26:00 +0200 | [diff] [blame] | 82 | int (*post_setup)(struct nci_dev *ndev); |
Clément Perrochaud | 25af01e | 2015-03-09 11:12:03 +0100 | [diff] [blame] | 83 | int (*fw_download)(struct nci_dev *ndev, const char *firmware_name); |
Christophe Ricard | 9e87f9a | 2014-09-13 10:28:49 +0200 | [diff] [blame] | 84 | __u32 (*get_rfprotocol)(struct nci_dev *ndev, __u8 rf_protocol); |
Christophe Ricard | ba4db55 | 2014-11-13 00:30:35 +0100 | [diff] [blame] | 85 | int (*discover_se)(struct nci_dev *ndev); |
Christophe Ricard | e9ef943 | 2014-11-13 00:30:37 +0100 | [diff] [blame] | 86 | int (*disable_se)(struct nci_dev *ndev, u32 se_idx); |
Christophe Ricard | 93bca2b | 2014-11-13 00:30:36 +0100 | [diff] [blame] | 87 | int (*enable_se)(struct nci_dev *ndev, u32 se_idx); |
Christophe Ricard | a688bf5 | 2014-11-13 00:30:38 +0100 | [diff] [blame] | 88 | int (*se_io)(struct nci_dev *ndev, u32 se_idx, |
| 89 | u8 *apdu, size_t apdu_length, |
| 90 | se_io_cb_t cb, void *cb_context); |
Christophe Ricard | 11f54f2 | 2015-02-01 22:26:14 +0100 | [diff] [blame] | 91 | int (*hci_load_session)(struct nci_dev *ndev); |
| 92 | void (*hci_event_received)(struct nci_dev *ndev, u8 pipe, u8 event, |
| 93 | struct sk_buff *skb); |
| 94 | void (*hci_cmd_received)(struct nci_dev *ndev, u8 pipe, u8 cmd, |
| 95 | struct sk_buff *skb); |
Samuel Ortiz | b6355e9 | 2015-06-06 13:16:37 +0200 | [diff] [blame] | 96 | |
Robert Dolca | 22e4bd0 | 2015-10-22 12:11:39 +0300 | [diff] [blame] | 97 | struct nci_driver_ops *prop_ops; |
Samuel Ortiz | b6355e9 | 2015-06-06 13:16:37 +0200 | [diff] [blame] | 98 | size_t n_prop_ops; |
Robert Dolca | 0a97a3c | 2015-10-22 12:11:38 +0300 | [diff] [blame] | 99 | |
Robert Dolca | 22e4bd0 | 2015-10-22 12:11:39 +0300 | [diff] [blame] | 100 | struct nci_driver_ops *core_ops; |
Robert Dolca | 0a97a3c | 2015-10-22 12:11:38 +0300 | [diff] [blame] | 101 | size_t n_core_ops; |
Ilan Elias | 6a2968a | 2011-09-18 11:19:35 +0300 | [diff] [blame] | 102 | }; |
| 103 | |
| 104 | #define NCI_MAX_SUPPORTED_RF_INTERFACES 4 |
Ilan Elias | 019c4fb | 2012-01-18 13:16:14 +0200 | [diff] [blame] | 105 | #define NCI_MAX_DISCOVERED_TARGETS 10 |
Christophe Ricard | 4aeee68 | 2015-02-01 22:26:08 +0100 | [diff] [blame] | 106 | #define NCI_MAX_NUM_NFCEE 255 |
| 107 | #define NCI_MAX_CONN_ID 7 |
Samuel Ortiz | b6355e9 | 2015-06-06 13:16:37 +0200 | [diff] [blame] | 108 | #define NCI_MAX_PROPRIETARY_CMD 64 |
Christophe Ricard | 4aeee68 | 2015-02-01 22:26:08 +0100 | [diff] [blame] | 109 | |
| 110 | struct nci_conn_info { |
| 111 | struct list_head list; |
Christophe Ricard | 9b8d1a4 | 2016-04-30 09:12:51 +0200 | [diff] [blame] | 112 | /* NCI specification 4.4.2 Connection Creation |
| 113 | * The combination of destination type and destination specific |
| 114 | * parameters shall uniquely identify a single destination for the |
| 115 | * Logical Connection |
| 116 | */ |
| 117 | struct dest_spec_params *dest_params; |
| 118 | __u8 dest_type; |
Christophe Ricard | 4aeee68 | 2015-02-01 22:26:08 +0100 | [diff] [blame] | 119 | __u8 conn_id; |
| 120 | __u8 max_pkt_payload_len; |
| 121 | |
| 122 | atomic_t credits_cnt; |
| 123 | __u8 initial_num_credits; |
| 124 | |
| 125 | data_exchange_cb_t data_exchange_cb; |
| 126 | void *data_exchange_cb_context; |
| 127 | |
| 128 | struct sk_buff *rx_skb; |
| 129 | }; |
Ilan Elias | 6a2968a | 2011-09-18 11:19:35 +0300 | [diff] [blame] | 130 | |
Christophe Ricard | af9c8aa | 2015-02-01 22:26:10 +0100 | [diff] [blame] | 131 | #define NCI_INVALID_CONN_ID 0x80 |
| 132 | |
Christophe Ricard | 11f54f2 | 2015-02-01 22:26:14 +0100 | [diff] [blame] | 133 | #define NCI_HCI_ANY_OPEN_PIPE 0x03 |
| 134 | |
| 135 | /* Gates */ |
| 136 | #define NCI_HCI_ADMIN_GATE 0x00 |
Christophe Ricard | b1fa4dc | 2015-10-25 22:54:36 +0100 | [diff] [blame] | 137 | #define NCI_HCI_LOOPBACK_GATE 0x04 |
Christophe Ricard | 7e35740 | 2015-10-25 22:54:33 +0100 | [diff] [blame] | 138 | #define NCI_HCI_IDENTITY_MGMT_GATE 0x05 |
Christophe Ricard | 11f54f2 | 2015-02-01 22:26:14 +0100 | [diff] [blame] | 139 | #define NCI_HCI_LINK_MGMT_GATE 0x06 |
| 140 | |
| 141 | /* Pipes */ |
| 142 | #define NCI_HCI_LINK_MGMT_PIPE 0x00 |
| 143 | #define NCI_HCI_ADMIN_PIPE 0x01 |
| 144 | |
| 145 | /* Generic responses */ |
| 146 | #define NCI_HCI_ANY_OK 0x00 |
| 147 | #define NCI_HCI_ANY_E_NOT_CONNECTED 0x01 |
| 148 | #define NCI_HCI_ANY_E_CMD_PAR_UNKNOWN 0x02 |
| 149 | #define NCI_HCI_ANY_E_NOK 0x03 |
| 150 | #define NCI_HCI_ANY_E_PIPES_FULL 0x04 |
| 151 | #define NCI_HCI_ANY_E_REG_PAR_UNKNOWN 0x05 |
| 152 | #define NCI_HCI_ANY_E_PIPE_NOT_OPENED 0x06 |
| 153 | #define NCI_HCI_ANY_E_CMD_NOT_SUPPORTED 0x07 |
| 154 | #define NCI_HCI_ANY_E_INHIBITED 0x08 |
| 155 | #define NCI_HCI_ANY_E_TIMEOUT 0x09 |
| 156 | #define NCI_HCI_ANY_E_REG_ACCESS_DENIED 0x0a |
| 157 | #define NCI_HCI_ANY_E_PIPE_ACCESS_DENIED 0x0b |
| 158 | |
| 159 | #define NCI_HCI_DO_NOT_OPEN_PIPE 0x81 |
| 160 | #define NCI_HCI_INVALID_PIPE 0x80 |
| 161 | #define NCI_HCI_INVALID_GATE 0xFF |
| 162 | #define NCI_HCI_INVALID_HOST 0x80 |
| 163 | |
| 164 | #define NCI_HCI_MAX_CUSTOM_GATES 50 |
Christophe Ricard | 1f74f32 | 2015-03-31 08:02:21 +0200 | [diff] [blame] | 165 | /* |
| 166 | * According to specification 102 622 chapter 4.4 Pipes, |
| 167 | * the pipe identifier is 7 bits long. |
| 168 | */ |
Christophe Ricard | 11f54f2 | 2015-02-01 22:26:14 +0100 | [diff] [blame] | 169 | #define NCI_HCI_MAX_PIPES 127 |
| 170 | |
| 171 | struct nci_hci_gate { |
| 172 | u8 gate; |
| 173 | u8 pipe; |
| 174 | u8 dest_host; |
| 175 | } __packed; |
| 176 | |
| 177 | struct nci_hci_pipe { |
| 178 | u8 gate; |
| 179 | u8 host; |
| 180 | } __packed; |
| 181 | |
| 182 | struct nci_hci_init_data { |
| 183 | u8 gate_count; |
| 184 | struct nci_hci_gate gates[NCI_HCI_MAX_CUSTOM_GATES]; |
| 185 | char session_id[9]; |
| 186 | }; |
| 187 | |
| 188 | #define NCI_HCI_MAX_GATES 256 |
| 189 | |
| 190 | struct nci_hci_dev { |
Christophe Ricard | 15d4a8d | 2015-02-03 19:48:07 +0100 | [diff] [blame] | 191 | u8 nfcee_id; |
Christophe Ricard | 11f54f2 | 2015-02-01 22:26:14 +0100 | [diff] [blame] | 192 | struct nci_dev *ndev; |
| 193 | struct nci_conn_info *conn_info; |
| 194 | |
| 195 | struct nci_hci_init_data init_data; |
| 196 | struct nci_hci_pipe pipes[NCI_HCI_MAX_PIPES]; |
| 197 | u8 gate2pipe[NCI_HCI_MAX_GATES]; |
| 198 | int expected_pipes; |
| 199 | int count_pipes; |
| 200 | |
| 201 | struct sk_buff_head rx_hcp_frags; |
| 202 | struct work_struct msg_rx_work; |
| 203 | struct sk_buff_head msg_rx_queue; |
| 204 | }; |
| 205 | |
Ilan Elias | 6a2968a | 2011-09-18 11:19:35 +0300 | [diff] [blame] | 206 | /* NCI Core structures */ |
| 207 | struct nci_dev { |
| 208 | struct nfc_dev *nfc_dev; |
| 209 | struct nci_ops *ops; |
Christophe Ricard | 11f54f2 | 2015-02-01 22:26:14 +0100 | [diff] [blame] | 210 | struct nci_hci_dev *hci_dev; |
Ilan Elias | 6a2968a | 2011-09-18 11:19:35 +0300 | [diff] [blame] | 211 | |
| 212 | int tx_headroom; |
| 213 | int tx_tailroom; |
| 214 | |
Ilan Elias | 8939e47 | 2012-01-18 13:16:12 +0200 | [diff] [blame] | 215 | atomic_t state; |
Ilan Elias | 6a2968a | 2011-09-18 11:19:35 +0300 | [diff] [blame] | 216 | unsigned long flags; |
| 217 | |
| 218 | atomic_t cmd_cnt; |
Christophe Ricard | 4aeee68 | 2015-02-01 22:26:08 +0100 | [diff] [blame] | 219 | __u8 cur_conn_id; |
| 220 | |
| 221 | struct list_head conn_info_list; |
Christophe Ricard | 12bdf27 | 2015-02-03 19:48:04 +0100 | [diff] [blame] | 222 | struct nci_conn_info *rf_conn_info; |
Ilan Elias | 6a2968a | 2011-09-18 11:19:35 +0300 | [diff] [blame] | 223 | |
| 224 | struct timer_list cmd_timer; |
Ilan Elias | c4bf98b | 2012-01-17 12:03:50 +0200 | [diff] [blame] | 225 | struct timer_list data_timer; |
Ilan Elias | 6a2968a | 2011-09-18 11:19:35 +0300 | [diff] [blame] | 226 | |
| 227 | struct workqueue_struct *cmd_wq; |
| 228 | struct work_struct cmd_work; |
| 229 | |
| 230 | struct workqueue_struct *rx_wq; |
| 231 | struct work_struct rx_work; |
| 232 | |
| 233 | struct workqueue_struct *tx_wq; |
| 234 | struct work_struct tx_work; |
| 235 | |
| 236 | struct sk_buff_head cmd_q; |
| 237 | struct sk_buff_head rx_q; |
| 238 | struct sk_buff_head tx_q; |
| 239 | |
| 240 | struct mutex req_lock; |
| 241 | struct completion req_completion; |
| 242 | __u32 req_status; |
| 243 | __u32 req_result; |
| 244 | |
| 245 | void *driver_data; |
| 246 | |
| 247 | __u32 poll_prots; |
Ilan Elias | 6a2968a | 2011-09-18 11:19:35 +0300 | [diff] [blame] | 248 | __u32 target_active_prot; |
| 249 | |
Ilan Elias | 019c4fb | 2012-01-18 13:16:14 +0200 | [diff] [blame] | 250 | struct nfc_target targets[NCI_MAX_DISCOVERED_TARGETS]; |
| 251 | int n_targets; |
| 252 | |
Ilan Elias | 6a2968a | 2011-09-18 11:19:35 +0300 | [diff] [blame] | 253 | /* received during NCI_OP_CORE_RESET_RSP */ |
| 254 | __u8 nci_ver; |
| 255 | |
| 256 | /* received during NCI_OP_CORE_INIT_RSP */ |
| 257 | __u32 nfcc_features; |
| 258 | __u8 num_supported_rf_interfaces; |
| 259 | __u8 supported_rf_interfaces |
| 260 | [NCI_MAX_SUPPORTED_RF_INTERFACES]; |
| 261 | __u8 max_logical_connections; |
| 262 | __u16 max_routing_table_size; |
Ilan Elias | e8c0dac | 2011-11-09 12:09:14 +0200 | [diff] [blame] | 263 | __u8 max_ctrl_pkt_payload_len; |
| 264 | __u16 max_size_for_large_params; |
Ilan Elias | e8c0dac | 2011-11-09 12:09:14 +0200 | [diff] [blame] | 265 | __u8 manufact_id; |
| 266 | __u32 manufact_specific_info; |
Ilan Elias | 6a2968a | 2011-09-18 11:19:35 +0300 | [diff] [blame] | 267 | |
Christophe Ricard | 4aeee68 | 2015-02-01 22:26:08 +0100 | [diff] [blame] | 268 | /* Save RF Discovery ID or NFCEE ID under conn_create */ |
Christophe Ricard | 9b8d1a4 | 2016-04-30 09:12:51 +0200 | [diff] [blame] | 269 | struct dest_spec_params cur_params; |
| 270 | /* Save destination type under conn_create */ |
| 271 | __u8 cur_dest_type; |
Ilan Elias | 637d85a | 2011-12-20 16:57:40 +0200 | [diff] [blame] | 272 | |
Ilan Elias | 6a2968a | 2011-09-18 11:19:35 +0300 | [diff] [blame] | 273 | /* stored during nci_data_exchange */ |
Ilan Elias | 6a2968a | 2011-09-18 11:19:35 +0300 | [diff] [blame] | 274 | struct sk_buff *rx_data_reassembly; |
Ilan Elias | 767f19a | 2012-08-15 11:46:24 +0300 | [diff] [blame] | 275 | |
| 276 | /* stored during intf_activated_ntf */ |
| 277 | __u8 remote_gb[NFC_MAX_GT_LEN]; |
| 278 | __u8 remote_gb_len; |
Ilan Elias | 6a2968a | 2011-09-18 11:19:35 +0300 | [diff] [blame] | 279 | }; |
| 280 | |
| 281 | /* ----- NCI Devices ----- */ |
| 282 | struct nci_dev *nci_allocate_device(struct nci_ops *ops, |
Samuel Ortiz | eb9bc6e | 2012-03-05 01:03:54 +0100 | [diff] [blame] | 283 | __u32 supported_protocols, |
| 284 | int tx_headroom, |
| 285 | int tx_tailroom); |
Ilan Elias | 6a2968a | 2011-09-18 11:19:35 +0300 | [diff] [blame] | 286 | void nci_free_device(struct nci_dev *ndev); |
| 287 | int nci_register_device(struct nci_dev *ndev); |
| 288 | void nci_unregister_device(struct nci_dev *ndev); |
Christophe Ricard | 11f54f2 | 2015-02-01 22:26:14 +0100 | [diff] [blame] | 289 | int nci_request(struct nci_dev *ndev, |
| 290 | void (*req)(struct nci_dev *ndev, |
| 291 | unsigned long opt), |
| 292 | unsigned long opt, __u32 timeout); |
Christophe Ricard | 759afb8 | 2015-06-06 13:16:41 +0200 | [diff] [blame] | 293 | int nci_prop_cmd(struct nci_dev *ndev, __u8 oid, size_t len, __u8 *payload); |
Robert Dolca | 7bc4824 | 2015-10-22 12:11:37 +0300 | [diff] [blame] | 294 | int nci_core_cmd(struct nci_dev *ndev, __u16 opcode, size_t len, __u8 *payload); |
Robert Baldyga | 025a0cb | 2015-08-20 17:26:01 +0200 | [diff] [blame] | 295 | int nci_core_reset(struct nci_dev *ndev); |
| 296 | int nci_core_init(struct nci_dev *ndev); |
Christophe Ricard | 759afb8 | 2015-06-06 13:16:41 +0200 | [diff] [blame] | 297 | |
Frederic Danis | 1095e69 | 2013-05-22 11:36:17 +0200 | [diff] [blame] | 298 | int nci_recv_frame(struct nci_dev *ndev, struct sk_buff *skb); |
Vincent Cuissard | e5629d2 | 2015-10-26 10:27:38 +0100 | [diff] [blame] | 299 | int nci_send_frame(struct nci_dev *ndev, struct sk_buff *skb); |
Amitkumar Karwar | 22c15bf | 2014-01-06 12:58:18 -0800 | [diff] [blame] | 300 | int nci_set_config(struct nci_dev *ndev, __u8 id, size_t len, __u8 *val); |
Ilan Elias | 6a2968a | 2011-09-18 11:19:35 +0300 | [diff] [blame] | 301 | |
Christophe Ricard | af9c8aa | 2015-02-01 22:26:10 +0100 | [diff] [blame] | 302 | int nci_nfcee_discover(struct nci_dev *ndev, u8 action); |
Christophe Ricard | f7f793f | 2015-02-01 22:26:11 +0100 | [diff] [blame] | 303 | int nci_nfcee_mode_set(struct nci_dev *ndev, u8 nfcee_id, u8 nfcee_mode); |
Christophe Ricard | b16ae71 | 2015-02-03 19:48:05 +0100 | [diff] [blame] | 304 | int nci_core_conn_create(struct nci_dev *ndev, u8 destination_type, |
| 305 | u8 number_destination_params, |
| 306 | size_t params_len, |
Christophe Ricard | 736bb95 | 2015-02-01 22:26:12 +0100 | [diff] [blame] | 307 | struct core_conn_create_dest_spec_params *params); |
| 308 | int nci_core_conn_close(struct nci_dev *ndev, u8 conn_id); |
Christophe Ricard | 1c53855 | 2016-04-30 09:12:52 +0200 | [diff] [blame] | 309 | int nci_nfcc_loopback(struct nci_dev *ndev, void *data, size_t data_len, |
| 310 | struct sk_buff **resp); |
Christophe Ricard | af9c8aa | 2015-02-01 22:26:10 +0100 | [diff] [blame] | 311 | |
Christophe Ricard | 11f54f2 | 2015-02-01 22:26:14 +0100 | [diff] [blame] | 312 | struct nci_hci_dev *nci_hci_allocate(struct nci_dev *ndev); |
| 313 | int nci_hci_send_event(struct nci_dev *ndev, u8 gate, u8 event, |
| 314 | const u8 *param, size_t param_len); |
| 315 | int nci_hci_send_cmd(struct nci_dev *ndev, u8 gate, |
| 316 | u8 cmd, const u8 *param, size_t param_len, |
| 317 | struct sk_buff **skb); |
| 318 | int nci_hci_open_pipe(struct nci_dev *ndev, u8 pipe); |
| 319 | int nci_hci_connect_gate(struct nci_dev *ndev, u8 dest_host, |
| 320 | u8 dest_gate, u8 pipe); |
| 321 | int nci_hci_set_param(struct nci_dev *ndev, u8 gate, u8 idx, |
| 322 | const u8 *param, size_t param_len); |
| 323 | int nci_hci_get_param(struct nci_dev *ndev, u8 gate, u8 idx, |
| 324 | struct sk_buff **skb); |
Christophe Ricard | fa6fbad | 2015-10-25 22:54:23 +0100 | [diff] [blame] | 325 | int nci_hci_clear_all_pipes(struct nci_dev *ndev); |
Christophe Ricard | 11f54f2 | 2015-02-01 22:26:14 +0100 | [diff] [blame] | 326 | int nci_hci_dev_session_init(struct nci_dev *ndev); |
| 327 | |
Ilan Elias | 6a2968a | 2011-09-18 11:19:35 +0300 | [diff] [blame] | 328 | static inline struct sk_buff *nci_skb_alloc(struct nci_dev *ndev, |
Samuel Ortiz | eb9bc6e | 2012-03-05 01:03:54 +0100 | [diff] [blame] | 329 | unsigned int len, |
| 330 | gfp_t how) |
Ilan Elias | 6a2968a | 2011-09-18 11:19:35 +0300 | [diff] [blame] | 331 | { |
| 332 | struct sk_buff *skb; |
| 333 | |
| 334 | skb = alloc_skb(len + ndev->tx_headroom + ndev->tx_tailroom, how); |
| 335 | if (skb) |
| 336 | skb_reserve(skb, ndev->tx_headroom); |
| 337 | |
| 338 | return skb; |
| 339 | } |
| 340 | |
| 341 | static inline void nci_set_parent_dev(struct nci_dev *ndev, struct device *dev) |
| 342 | { |
| 343 | nfc_set_parent_dev(ndev->nfc_dev, dev); |
| 344 | } |
| 345 | |
| 346 | static inline void nci_set_drvdata(struct nci_dev *ndev, void *data) |
| 347 | { |
| 348 | ndev->driver_data = data; |
| 349 | } |
| 350 | |
| 351 | static inline void *nci_get_drvdata(struct nci_dev *ndev) |
| 352 | { |
| 353 | return ndev->driver_data; |
| 354 | } |
| 355 | |
Samuel Ortiz | 8115dd5 | 2014-10-14 01:42:23 +0200 | [diff] [blame] | 356 | static inline int nci_set_vendor_cmds(struct nci_dev *ndev, |
| 357 | struct nfc_vendor_cmd *cmds, |
| 358 | int n_cmds) |
| 359 | { |
| 360 | return nfc_set_vendor_cmds(ndev->nfc_dev, cmds, n_cmds); |
| 361 | } |
| 362 | |
Ilan Elias | 6a2968a | 2011-09-18 11:19:35 +0300 | [diff] [blame] | 363 | void nci_rsp_packet(struct nci_dev *ndev, struct sk_buff *skb); |
| 364 | void nci_ntf_packet(struct nci_dev *ndev, struct sk_buff *skb); |
Robert Dolca | f116317 | 2015-10-26 13:58:54 +0200 | [diff] [blame] | 365 | int nci_prop_rsp_packet(struct nci_dev *ndev, __u16 opcode, |
Samuel Ortiz | b6355e9 | 2015-06-06 13:16:37 +0200 | [diff] [blame] | 366 | struct sk_buff *skb); |
Robert Dolca | f116317 | 2015-10-26 13:58:54 +0200 | [diff] [blame] | 367 | int nci_prop_ntf_packet(struct nci_dev *ndev, __u16 opcode, |
Robert Dolca | 0a97a3c | 2015-10-22 12:11:38 +0300 | [diff] [blame] | 368 | struct sk_buff *skb); |
Robert Dolca | f116317 | 2015-10-26 13:58:54 +0200 | [diff] [blame] | 369 | int nci_core_rsp_packet(struct nci_dev *ndev, __u16 opcode, |
Robert Dolca | 0a97a3c | 2015-10-22 12:11:38 +0300 | [diff] [blame] | 370 | struct sk_buff *skb); |
Robert Dolca | f116317 | 2015-10-26 13:58:54 +0200 | [diff] [blame] | 371 | int nci_core_ntf_packet(struct nci_dev *ndev, __u16 opcode, |
Samuel Ortiz | b6355e9 | 2015-06-06 13:16:37 +0200 | [diff] [blame] | 372 | struct sk_buff *skb); |
Ilan Elias | 6a2968a | 2011-09-18 11:19:35 +0300 | [diff] [blame] | 373 | void nci_rx_data_packet(struct nci_dev *ndev, struct sk_buff *skb); |
| 374 | int nci_send_cmd(struct nci_dev *ndev, __u16 opcode, __u8 plen, void *payload); |
| 375 | int nci_send_data(struct nci_dev *ndev, __u8 conn_id, struct sk_buff *skb); |
Robert Dolca | 2663589 | 2015-10-22 12:11:34 +0300 | [diff] [blame] | 376 | int nci_conn_max_data_pkt_payload_size(struct nci_dev *ndev, __u8 conn_id); |
Ilan Elias | 6a2968a | 2011-09-18 11:19:35 +0300 | [diff] [blame] | 377 | void nci_data_exchange_complete(struct nci_dev *ndev, struct sk_buff *skb, |
Christophe Ricard | 4aeee68 | 2015-02-01 22:26:08 +0100 | [diff] [blame] | 378 | __u8 conn_id, int err); |
Christophe Ricard | 11f54f2 | 2015-02-01 22:26:14 +0100 | [diff] [blame] | 379 | void nci_hci_data_received_cb(void *context, struct sk_buff *skb, int err); |
| 380 | |
Ilan Elias | 019c4fb | 2012-01-18 13:16:14 +0200 | [diff] [blame] | 381 | void nci_clear_target_list(struct nci_dev *ndev); |
Ilan Elias | 6a2968a | 2011-09-18 11:19:35 +0300 | [diff] [blame] | 382 | |
| 383 | /* ----- NCI requests ----- */ |
| 384 | #define NCI_REQ_DONE 0 |
| 385 | #define NCI_REQ_PEND 1 |
| 386 | #define NCI_REQ_CANCELED 2 |
| 387 | |
| 388 | void nci_req_complete(struct nci_dev *ndev, int result); |
Christophe Ricard | 4aeee68 | 2015-02-01 22:26:08 +0100 | [diff] [blame] | 389 | struct nci_conn_info *nci_get_conn_info_by_conn_id(struct nci_dev *ndev, |
| 390 | int conn_id); |
Christophe Ricard | 9b8d1a4 | 2016-04-30 09:12:51 +0200 | [diff] [blame] | 391 | int nci_get_conn_info_by_dest_type_params(struct nci_dev *ndev, u8 dest_type, |
| 392 | struct dest_spec_params *params); |
Ilan Elias | 6a2968a | 2011-09-18 11:19:35 +0300 | [diff] [blame] | 393 | |
| 394 | /* ----- NCI status code ----- */ |
| 395 | int nci_to_errno(__u8 code); |
| 396 | |
Frederic Danis | 8a00a61 | 2013-05-29 15:35:02 +0200 | [diff] [blame] | 397 | /* ----- NCI over SPI acknowledge modes ----- */ |
| 398 | #define NCI_SPI_CRC_DISABLED 0x00 |
| 399 | #define NCI_SPI_CRC_ENABLED 0x01 |
| 400 | |
| 401 | /* ----- NCI SPI structures ----- */ |
Eric Lapuyade | fa544ff | 2013-09-05 11:02:21 +0200 | [diff] [blame] | 402 | struct nci_spi { |
Eric Lapuyade | d593751 | 2013-09-02 12:35:39 +0200 | [diff] [blame] | 403 | struct nci_dev *ndev; |
Frederic Danis | 8a00a61 | 2013-05-29 15:35:02 +0200 | [diff] [blame] | 404 | struct spi_device *spi; |
Frederic Danis | 8a00a61 | 2013-05-29 15:35:02 +0200 | [diff] [blame] | 405 | |
| 406 | unsigned int xfer_udelay; /* microseconds delay between |
| 407 | transactions */ |
Vincent Cuissard | 2bd8324 | 2015-10-26 10:27:43 +0100 | [diff] [blame] | 408 | |
| 409 | unsigned int xfer_speed_hz; /* |
| 410 | * SPI clock frequency |
| 411 | * 0 => default clock |
| 412 | */ |
| 413 | |
Frederic Danis | 8a00a61 | 2013-05-29 15:35:02 +0200 | [diff] [blame] | 414 | u8 acknowledge_mode; |
| 415 | |
Frederic Danis | ee9596d | 2013-05-29 15:35:03 +0200 | [diff] [blame] | 416 | struct completion req_completion; |
| 417 | u8 req_result; |
Frederic Danis | 8a00a61 | 2013-05-29 15:35:02 +0200 | [diff] [blame] | 418 | }; |
| 419 | |
Eric Lapuyade | fa544ff | 2013-09-05 11:02:21 +0200 | [diff] [blame] | 420 | /* ----- NCI SPI ----- */ |
| 421 | struct nci_spi *nci_spi_allocate_spi(struct spi_device *spi, |
Eric Lapuyade | fa544ff | 2013-09-05 11:02:21 +0200 | [diff] [blame] | 422 | u8 acknowledge_mode, unsigned int delay, |
| 423 | struct nci_dev *ndev); |
Eric Lapuyade | 2bed278 | 2013-09-23 17:56:43 +0200 | [diff] [blame] | 424 | int nci_spi_send(struct nci_spi *nspi, |
| 425 | struct completion *write_handshake_completion, |
| 426 | struct sk_buff *skb); |
Eric Lapuyade | 22d4aae | 2013-09-23 17:56:31 +0200 | [diff] [blame] | 427 | struct sk_buff *nci_spi_read(struct nci_spi *nspi); |
Frederic Danis | 8a00a61 | 2013-05-29 15:35:02 +0200 | [diff] [blame] | 428 | |
Vincent Cuissard | 9961127 | 2015-06-11 11:25:47 +0200 | [diff] [blame] | 429 | /* ----- NCI UART ---- */ |
| 430 | |
| 431 | /* Ioctl */ |
| 432 | #define NCIUARTSETDRIVER _IOW('U', 0, char *) |
| 433 | |
| 434 | enum nci_uart_driver { |
| 435 | NCI_UART_DRIVER_MARVELL = 0, |
| 436 | NCI_UART_DRIVER_MAX |
| 437 | }; |
| 438 | |
| 439 | struct nci_uart; |
| 440 | |
| 441 | struct nci_uart_ops { |
| 442 | int (*open)(struct nci_uart *nci_uart); |
| 443 | void (*close)(struct nci_uart *nci_uart); |
| 444 | int (*recv)(struct nci_uart *nci_uart, struct sk_buff *skb); |
| 445 | int (*recv_buf)(struct nci_uart *nci_uart, const u8 *data, char *flags, |
| 446 | int count); |
| 447 | int (*send)(struct nci_uart *nci_uart, struct sk_buff *skb); |
| 448 | void (*tx_start)(struct nci_uart *nci_uart); |
| 449 | void (*tx_done)(struct nci_uart *nci_uart); |
| 450 | }; |
| 451 | |
| 452 | struct nci_uart { |
| 453 | struct module *owner; |
| 454 | struct nci_uart_ops ops; |
| 455 | const char *name; |
| 456 | enum nci_uart_driver driver; |
| 457 | |
| 458 | /* Dynamic data */ |
| 459 | struct nci_dev *ndev; |
| 460 | spinlock_t rx_lock; |
| 461 | struct work_struct write_work; |
| 462 | struct tty_struct *tty; |
| 463 | unsigned long tx_state; |
| 464 | struct sk_buff_head tx_q; |
| 465 | struct sk_buff *tx_skb; |
| 466 | struct sk_buff *rx_skb; |
| 467 | int rx_packet_len; |
| 468 | void *drv_data; |
| 469 | }; |
| 470 | |
| 471 | int nci_uart_register(struct nci_uart *nu); |
| 472 | void nci_uart_unregister(struct nci_uart *nu); |
| 473 | void nci_uart_set_config(struct nci_uart *nu, int baudrate, int flow_ctrl); |
| 474 | |
Ilan Elias | 6a2968a | 2011-09-18 11:19:35 +0300 | [diff] [blame] | 475 | #endif /* __NCI_CORE_H */ |