[352] | 1 | /*
|
---|
| 2 | * Copyright (C) 2009-2012 by Matthias Ringwald
|
---|
| 3 | *
|
---|
| 4 | * Redistribution and use in source and binary forms, with or without
|
---|
| 5 | * modification, are permitted provided that the following conditions
|
---|
| 6 | * are met:
|
---|
| 7 | *
|
---|
| 8 | * 1. Redistributions of source code must retain the above copyright
|
---|
| 9 | * notice, this list of conditions and the following disclaimer.
|
---|
| 10 | * 2. Redistributions in binary form must reproduce the above copyright
|
---|
| 11 | * notice, this list of conditions and the following disclaimer in the
|
---|
| 12 | * documentation and/or other materials provided with the distribution.
|
---|
| 13 | * 3. Neither the name of the copyright holders nor the names of
|
---|
| 14 | * contributors may be used to endorse or promote products derived
|
---|
| 15 | * from this software without specific prior written permission.
|
---|
| 16 | * 4. Any redistribution, use, or modification is done solely for
|
---|
| 17 | * personal benefit and not for any commercial purpose or for
|
---|
| 18 | * monetary gain.
|
---|
| 19 | *
|
---|
| 20 | * THIS SOFTWARE IS PROVIDED BY MATTHIAS RINGWALD AND CONTRIBUTORS
|
---|
| 21 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
---|
| 22 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
---|
| 23 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS
|
---|
| 24 | * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
---|
| 25 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
---|
| 26 | * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
---|
| 27 | * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
---|
| 28 | * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
---|
| 29 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
|
---|
| 30 | * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
---|
| 31 | * SUCH DAMAGE.
|
---|
| 32 | *
|
---|
| 33 | * Please inquire about commercial licensing options at btstack@ringwald.ch
|
---|
| 34 | *
|
---|
| 35 | */
|
---|
| 36 |
|
---|
| 37 | /*
|
---|
| 38 | * RFCOMM.h
|
---|
| 39 | */
|
---|
| 40 |
|
---|
| 41 | #ifndef __RFCOMM_H
|
---|
| 42 | #define __RFCOMM_H
|
---|
| 43 |
|
---|
| 44 | #include <btstack/btstack.h>
|
---|
| 45 | #include <btstack/utils.h>
|
---|
| 46 |
|
---|
| 47 | #include <stdint.h>
|
---|
| 48 |
|
---|
| 49 | #if defined __cplusplus
|
---|
| 50 | extern "C" {
|
---|
| 51 | #endif
|
---|
| 52 |
|
---|
| 53 | #define UNLIMITED_INCOMING_CREDITS 0xff
|
---|
| 54 |
|
---|
| 55 | #define RFCOMM_TEST_DATA_MAX_LEN 4
|
---|
| 56 |
|
---|
| 57 | #define RFCOMM_RLS_STATUS_INVALID 0xff
|
---|
| 58 |
|
---|
| 59 | // Line Status
|
---|
| 60 | #define LINE_STATUS_NO_ERROR 0x00
|
---|
| 61 | #define LINE_STATUS_OVERRUN_ERROR 0x03
|
---|
| 62 | #define LINE_STATUS_PARITY_ERORR 0x05
|
---|
| 63 | #define LINE_STATUS_FRAMING_ERROR 0x09
|
---|
| 64 |
|
---|
| 65 | // Modem Status Flags
|
---|
| 66 | #define MODEM_STATUS_FC 0x02
|
---|
| 67 | #define MODEM_STATUS_RTC 0x04
|
---|
| 68 | #define MODEM_STATUS_RTR 0x08
|
---|
| 69 | #define MODEM_STATUS_IC 0x40
|
---|
| 70 | #define MODEM_STATUS_DV 0x80
|
---|
| 71 |
|
---|
| 72 | typedef enum rpn_baud {
|
---|
| 73 | RPN_BAUD_2400 = 0,
|
---|
| 74 | RPN_BAUD_4800,
|
---|
| 75 | RPN_BAUD_7200,
|
---|
| 76 | RPN_BAUD_9600,
|
---|
| 77 | RPN_BAUD_19200,
|
---|
| 78 | RPN_BAUD_38400,
|
---|
| 79 | RPN_BAUD_57600,
|
---|
| 80 | RPN_BAUD_115200,
|
---|
| 81 | RPN_BAUD_230400
|
---|
| 82 | } rpn_baud_t;
|
---|
| 83 |
|
---|
| 84 | typedef enum rpn_data_bits {
|
---|
| 85 | RPN_DATA_BITS_5 = 0,
|
---|
| 86 | RPN_DATA_BITS_6 = 0,
|
---|
| 87 | RPN_DATA_BITS_7 = 0,
|
---|
| 88 | RPN_DATA_BITS_8 = 0
|
---|
| 89 | } rpn_data_bits_t;
|
---|
| 90 |
|
---|
| 91 | typedef enum rpn_stop_bits {
|
---|
| 92 | RPN_STOP_BITS_1_0 = 0,
|
---|
| 93 | RPN_STOP_BITS_1_5
|
---|
| 94 | } rpn_stop_bits_t;
|
---|
| 95 |
|
---|
| 96 | typedef enum rpn_parity {
|
---|
| 97 | RPN_PARITY_NONE = 0,
|
---|
| 98 | RPN_PARITY_ODD = 1,
|
---|
| 99 | RPN_PARITY_EVEN = 3,
|
---|
| 100 | RPN_PARITY_MARK = 5,
|
---|
| 101 | RPN_PARITY_SPACE = 7,
|
---|
| 102 | } rpn_parity_t;
|
---|
| 103 |
|
---|
| 104 | typedef enum rpn_flow_control {
|
---|
| 105 | RPN_FLOW_CONTROL_XONXOFF_ON_INPUT = 1 << 0,
|
---|
| 106 | RPN_FLOW_CONTROL_XONXOFF_ON_OUTPUT = 1 << 1,
|
---|
| 107 | RPN_FLOW_CONTROL_RTR_ON_INPUT = 1 << 2,
|
---|
| 108 | RPN_FLOW_CONTROL_RTR_ON_OUTPUT = 1 << 3,
|
---|
| 109 | RPN_FLOW_CONTROL_RTC_ON_INPUT = 1 << 4,
|
---|
| 110 | RPN_FLOW_CONTROL_RTC_ON_OUTPUT = 1 << 5,
|
---|
| 111 | } rpn_flow_control_t;
|
---|
| 112 |
|
---|
| 113 | #define RPN_PARAM_MASK_0_BAUD 0x01
|
---|
| 114 | #define RPN_PARAM_MASK_0_DATA_BITS 0x02
|
---|
| 115 | #define RPN_PARAM_MASK_0_STOP_BITS 0x04
|
---|
| 116 | #define RPN_PARAM_MASK_0_PARITY 0x08
|
---|
| 117 | #define RPN_PARAM_MASK_0_PARITY_TYPE 0x10
|
---|
| 118 | #define RPN_PARAM_MASK_0_XON_CHAR 0x20
|
---|
| 119 | #define RPN_PARAM_MASK_0_XOFF_CHAR 0x40
|
---|
| 120 | #define RPN_PARAM_MASK_0_RESERVED 0x80
|
---|
| 121 |
|
---|
| 122 | // @note: values are identical to rpn_flow_control_t
|
---|
| 123 | #define RPN_PARAM_MASK_1_XONOFF_ON_INPUT 0x01
|
---|
| 124 | #define RPN_PARAM_MASK_1_XONOFF_ON_OUTPUT 0x02
|
---|
| 125 | #define RPN_PARAM_MASK_1_RTR_ON_INPUT 0x04
|
---|
| 126 | #define RPN_PARAM_MASK_1_RTR_ON_OUTPUT 0x08
|
---|
| 127 | #define RPN_PARAM_MASK_1_RTC_ON_INPUT 0x10
|
---|
| 128 | #define RPN_PARAM_MASK_1_RTC_ON_OUTPUT 0x20
|
---|
| 129 | #define RPN_PARAM_MASK_1_RESERVED_0 0x40
|
---|
| 130 | #define RPN_PARAM_MASK_1_RESERVED_1 0x80
|
---|
| 131 |
|
---|
| 132 |
|
---|
| 133 | // private structs
|
---|
| 134 | typedef enum {
|
---|
| 135 | RFCOMM_MULTIPLEXER_CLOSED = 1,
|
---|
| 136 | RFCOMM_MULTIPLEXER_W4_CONNECT, // outgoing
|
---|
| 137 | RFCOMM_MULTIPLEXER_SEND_SABM_0, // "
|
---|
| 138 | RFCOMM_MULTIPLEXER_W4_UA_0, // "
|
---|
| 139 | RFCOMM_MULTIPLEXER_W4_SABM_0, // incoming
|
---|
| 140 | RFCOMM_MULTIPLEXER_SEND_UA_0,
|
---|
| 141 | RFCOMM_MULTIPLEXER_OPEN,
|
---|
| 142 | RFCOMM_MULTIPLEXER_SEND_UA_0_AND_DISC
|
---|
| 143 | } RFCOMM_MULTIPLEXER_STATE;
|
---|
| 144 |
|
---|
| 145 | typedef enum {
|
---|
| 146 | MULT_EV_READY_TO_SEND = 1,
|
---|
| 147 |
|
---|
| 148 | } RFCOMM_MULTIPLEXER_EVENT;
|
---|
| 149 |
|
---|
| 150 | typedef enum {
|
---|
| 151 | RFCOMM_CHANNEL_CLOSED = 1,
|
---|
| 152 | RFCOMM_CHANNEL_W4_MULTIPLEXER,
|
---|
| 153 | RFCOMM_CHANNEL_SEND_UIH_PN,
|
---|
| 154 | RFCOMM_CHANNEL_W4_PN_RSP,
|
---|
| 155 | RFCOMM_CHANNEL_SEND_SABM_W4_UA,
|
---|
| 156 | RFCOMM_CHANNEL_W4_UA,
|
---|
| 157 | RFCOMM_CHANNEL_INCOMING_SETUP,
|
---|
| 158 | RFCOMM_CHANNEL_DLC_SETUP,
|
---|
| 159 | RFCOMM_CHANNEL_OPEN,
|
---|
| 160 | RFCOMM_CHANNEL_SEND_UA_AFTER_DISC,
|
---|
| 161 | RFCOMM_CHANNEL_SEND_DISC,
|
---|
| 162 | RFCOMM_CHANNEL_W4_UA_AFTER_UA,
|
---|
| 163 | RFCOMM_CHANNEL_SEND_DM,
|
---|
| 164 |
|
---|
| 165 | } RFCOMM_CHANNEL_STATE;
|
---|
| 166 |
|
---|
| 167 | typedef enum {
|
---|
| 168 | RFCOMM_CHANNEL_STATE_VAR_NONE = 0,
|
---|
| 169 | RFCOMM_CHANNEL_STATE_VAR_CLIENT_ACCEPTED = 1 << 0,
|
---|
| 170 | RFCOMM_CHANNEL_STATE_VAR_RCVD_PN = 1 << 1,
|
---|
| 171 | RFCOMM_CHANNEL_STATE_VAR_RCVD_RPN = 1 << 2,
|
---|
| 172 | RFCOMM_CHANNEL_STATE_VAR_RCVD_SABM = 1 << 3,
|
---|
| 173 |
|
---|
| 174 | RFCOMM_CHANNEL_STATE_VAR_RCVD_MSC_CMD = 1 << 4,
|
---|
| 175 | RFCOMM_CHANNEL_STATE_VAR_RCVD_MSC_RSP = 1 << 5,
|
---|
| 176 | RFCOMM_CHANNEL_STATE_VAR_SEND_PN_RSP = 1 << 6,
|
---|
| 177 | RFCOMM_CHANNEL_STATE_VAR_SEND_RPN_INFO = 1 << 7,
|
---|
| 178 |
|
---|
| 179 | RFCOMM_CHANNEL_STATE_VAR_SEND_RPN_RSP = 1 << 8,
|
---|
| 180 | RFCOMM_CHANNEL_STATE_VAR_SEND_UA = 1 << 9,
|
---|
| 181 | RFCOMM_CHANNEL_STATE_VAR_SEND_MSC_CMD = 1 << 10,
|
---|
| 182 | RFCOMM_CHANNEL_STATE_VAR_SEND_MSC_RSP = 1 << 11,
|
---|
| 183 |
|
---|
| 184 | RFCOMM_CHANNEL_STATE_VAR_SEND_CREDITS = 1 << 12,
|
---|
| 185 | RFCOMM_CHANNEL_STATE_VAR_SENT_MSC_CMD = 1 << 13,
|
---|
| 186 | RFCOMM_CHANNEL_STATE_VAR_SENT_MSC_RSP = 1 << 14,
|
---|
| 187 | RFCOMM_CHANNEL_STATE_VAR_SENT_CREDITS = 1 << 15,
|
---|
| 188 | } RFCOMM_CHANNEL_STATE_VAR;
|
---|
| 189 |
|
---|
| 190 | typedef enum {
|
---|
| 191 | CH_EVT_RCVD_SABM = 1,
|
---|
| 192 | CH_EVT_RCVD_UA,
|
---|
| 193 | CH_EVT_RCVD_PN,
|
---|
| 194 | CH_EVT_RCVD_PN_RSP,
|
---|
| 195 | CH_EVT_RCVD_DISC,
|
---|
| 196 | CH_EVT_RCVD_DM,
|
---|
| 197 | CH_EVT_RCVD_MSC_CMD,
|
---|
| 198 | CH_EVT_RCVD_MSC_RSP,
|
---|
| 199 | CH_EVT_RCVD_NSC_RSP,
|
---|
| 200 | CH_EVT_RCVD_RLS_CMD,
|
---|
| 201 | CH_EVT_RCVD_RLS_RSP,
|
---|
| 202 | CH_EVT_RCVD_RPN_CMD,
|
---|
| 203 | CH_EVT_RCVD_RPN_REQ,
|
---|
| 204 | CH_EVT_RCVD_CREDITS,
|
---|
| 205 | CH_EVT_MULTIPLEXER_READY,
|
---|
| 206 | CH_EVT_READY_TO_SEND,
|
---|
| 207 | } RFCOMM_CHANNEL_EVENT;
|
---|
| 208 |
|
---|
| 209 | typedef struct rfcomm_channel_event {
|
---|
| 210 | RFCOMM_CHANNEL_EVENT type;
|
---|
| 211 | } rfcomm_channel_event_t;
|
---|
| 212 |
|
---|
| 213 | typedef struct rfcomm_channel_event_pn {
|
---|
| 214 | rfcomm_channel_event_t super;
|
---|
| 215 | uint16_t max_frame_size;
|
---|
| 216 | uint8_t priority;
|
---|
| 217 | uint8_t credits_outgoing;
|
---|
| 218 | } rfcomm_channel_event_pn_t;
|
---|
| 219 |
|
---|
| 220 | typedef struct rfcomm_rpn_data {
|
---|
| 221 | uint8_t baud_rate;
|
---|
| 222 | uint8_t flags;
|
---|
| 223 | uint8_t flow_control;
|
---|
| 224 | uint8_t xon;
|
---|
| 225 | uint8_t xoff;
|
---|
| 226 | uint8_t parameter_mask_0; // first byte
|
---|
| 227 | uint8_t parameter_mask_1; // second byte
|
---|
| 228 | } rfcomm_rpn_data_t;
|
---|
| 229 |
|
---|
| 230 | typedef struct rfcomm_channel_event_rpn {
|
---|
| 231 | rfcomm_channel_event_t super;
|
---|
| 232 | rfcomm_rpn_data_t data;
|
---|
| 233 | } rfcomm_channel_event_rpn_t;
|
---|
| 234 |
|
---|
| 235 | typedef struct rfcomm_channel_event_rls {
|
---|
| 236 | rfcomm_channel_event_t super;
|
---|
| 237 | uint8_t line_status;
|
---|
| 238 | } rfcomm_channel_event_rls_t;
|
---|
| 239 |
|
---|
| 240 | typedef struct rfcomm_channel_event_msc {
|
---|
| 241 | rfcomm_channel_event_t super;
|
---|
| 242 | uint8_t modem_status;
|
---|
| 243 | } rfcomm_channel_event_msc_t;
|
---|
| 244 |
|
---|
| 245 | // info regarding potential connections
|
---|
| 246 | typedef struct {
|
---|
| 247 | // linked list - assert: first field
|
---|
| 248 | linked_item_t item;
|
---|
| 249 |
|
---|
| 250 | // server channel
|
---|
| 251 | uint8_t server_channel;
|
---|
| 252 |
|
---|
| 253 | // incoming max frame size
|
---|
| 254 | uint16_t max_frame_size;
|
---|
| 255 |
|
---|
| 256 | // use incoming flow control
|
---|
| 257 | uint8_t incoming_flow_control;
|
---|
| 258 |
|
---|
| 259 | // initial incoming credits
|
---|
| 260 | uint8_t incoming_initial_credits;
|
---|
| 261 |
|
---|
| 262 | // client connection
|
---|
| 263 | void *connection;
|
---|
| 264 |
|
---|
| 265 | // internal connection
|
---|
| 266 | btstack_packet_handler_t packet_handler;
|
---|
| 267 |
|
---|
| 268 | } rfcomm_service_t;
|
---|
| 269 |
|
---|
| 270 | // info regarding multiplexer
|
---|
| 271 | // note: spec mandates single multplexer per device combination
|
---|
| 272 | typedef struct {
|
---|
| 273 | // linked list - assert: first field
|
---|
| 274 | linked_item_t item;
|
---|
| 275 |
|
---|
| 276 | timer_source_t timer;
|
---|
| 277 | int timer_active;
|
---|
| 278 |
|
---|
| 279 | RFCOMM_MULTIPLEXER_STATE state;
|
---|
| 280 |
|
---|
| 281 | uint16_t l2cap_cid;
|
---|
| 282 | uint8_t l2cap_credits;
|
---|
| 283 |
|
---|
| 284 | uint8_t fcon; // only send if fcon & 1, send rsp if fcon & 0x80
|
---|
| 285 |
|
---|
| 286 | bd_addr_t remote_addr;
|
---|
| 287 | hci_con_handle_t con_handle;
|
---|
| 288 |
|
---|
| 289 | uint8_t outgoing;
|
---|
| 290 |
|
---|
| 291 | // hack to deal with authentication failure only observed by remote side
|
---|
| 292 | uint8_t at_least_one_connection;
|
---|
| 293 |
|
---|
| 294 | uint16_t max_frame_size;
|
---|
| 295 |
|
---|
| 296 | // send DM for DLCI != 0
|
---|
| 297 | uint8_t send_dm_for_dlci;
|
---|
| 298 |
|
---|
| 299 | // non supportec command, 0 if not set
|
---|
| 300 | uint8_t nsc_command;
|
---|
| 301 |
|
---|
| 302 | // test data - limited to RFCOMM_TEST_DATA_MAX_LEN
|
---|
| 303 | uint8_t test_data_len;
|
---|
| 304 | uint8_t test_data[RFCOMM_TEST_DATA_MAX_LEN];
|
---|
| 305 |
|
---|
| 306 | } rfcomm_multiplexer_t;
|
---|
| 307 |
|
---|
| 308 | // info regarding an actual coneection
|
---|
| 309 | typedef struct {
|
---|
| 310 | // linked list - assert: first field
|
---|
| 311 | linked_item_t item;
|
---|
| 312 |
|
---|
| 313 | rfcomm_multiplexer_t *multiplexer;
|
---|
| 314 | uint16_t rfcomm_cid;
|
---|
| 315 | uint8_t outgoing;
|
---|
| 316 | uint8_t dlci;
|
---|
| 317 |
|
---|
| 318 | // number of packets granted to client
|
---|
| 319 | uint8_t packets_granted;
|
---|
| 320 |
|
---|
| 321 | // credits for outgoing traffic
|
---|
| 322 | uint8_t credits_outgoing;
|
---|
| 323 |
|
---|
| 324 | // number of packets remote will be granted
|
---|
| 325 | uint8_t new_credits_incoming;
|
---|
| 326 |
|
---|
| 327 | // credits for incoming traffic
|
---|
| 328 | uint8_t credits_incoming;
|
---|
| 329 |
|
---|
| 330 | // use incoming flow control
|
---|
| 331 | uint8_t incoming_flow_control;
|
---|
| 332 |
|
---|
| 333 | // channel state
|
---|
| 334 | RFCOMM_CHANNEL_STATE state;
|
---|
| 335 |
|
---|
| 336 | // state variables used in RFCOMM_CHANNEL_INCOMING
|
---|
| 337 | RFCOMM_CHANNEL_STATE_VAR state_var;
|
---|
| 338 |
|
---|
| 339 | // priority set by incoming side in PN
|
---|
| 340 | uint8_t pn_priority;
|
---|
| 341 |
|
---|
| 342 | // negotiated frame size
|
---|
| 343 | uint16_t max_frame_size;
|
---|
| 344 |
|
---|
| 345 | // local rpn data
|
---|
| 346 | rfcomm_rpn_data_t rpn_data;
|
---|
| 347 |
|
---|
| 348 | // rls line status. RFCOMM_RLS_STATUS_INVALID if not set
|
---|
| 349 | uint8_t rls_line_status;
|
---|
| 350 |
|
---|
| 351 | // msc modem status.
|
---|
| 352 | uint8_t msc_modem_status;
|
---|
| 353 |
|
---|
| 354 | // server channel (see rfcomm_service_t) - NULL => outgoing channel
|
---|
| 355 | rfcomm_service_t * service;
|
---|
| 356 |
|
---|
| 357 | // internal connection
|
---|
| 358 | btstack_packet_handler_t packet_handler;
|
---|
| 359 |
|
---|
| 360 | // client connection
|
---|
| 361 | void * connection;
|
---|
| 362 |
|
---|
| 363 | } rfcomm_channel_t;
|
---|
| 364 |
|
---|
| 365 | void rfcomm_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size);
|
---|
| 366 |
|
---|
| 367 | /** Embedded API **/
|
---|
| 368 |
|
---|
| 369 | // Set up RFCOMM.
|
---|
| 370 | void rfcomm_init(void);
|
---|
| 371 |
|
---|
| 372 | // Set security level required for incoming connections, need to be called before registering services
|
---|
| 373 | void rfcomm_set_required_security_level(gap_security_level_t security_level);
|
---|
| 374 |
|
---|
| 375 | // Register packet handler.
|
---|
| 376 | void rfcomm_register_packet_handler(void (*handler)(void * connection, uint8_t packet_type,
|
---|
| 377 | uint16_t channel, uint8_t *packet, uint16_t size));
|
---|
| 378 |
|
---|
| 379 | // Creates RFCOMM connection (channel) to a given server channel on a remote device with baseband address. A new baseband connection will be initiated if necessary.
|
---|
| 380 | // This channel will automatically provide enough credits to the remote side
|
---|
| 381 | void rfcomm_create_channel_internal(void * connection, bd_addr_t *addr, uint8_t channel);
|
---|
| 382 |
|
---|
| 383 | // Creates RFCOMM connection (channel) to a given server channel on a remote device with baseband address. new baseband connection will be initiated if necessary.
|
---|
| 384 | // This channel will use explicit credit management. During channel establishment, an initial amount of credits is provided.
|
---|
| 385 | void rfcomm_create_channel_with_initial_credits_internal(void * connection, bd_addr_t *addr, uint8_t server_channel, uint8_t initial_credits);
|
---|
| 386 |
|
---|
| 387 | // Disconencts RFCOMM channel with given identifier.
|
---|
| 388 | void rfcomm_disconnect_internal(uint16_t rfcomm_cid);
|
---|
| 389 |
|
---|
| 390 | // Registers RFCOMM service for a server channel and a maximum frame size, and assigns a packet handler. On embedded systems, use NULL for connection parameter.
|
---|
| 391 | // This channel provides automatically enough credits to the remote side.
|
---|
| 392 | void rfcomm_register_service_internal(void * connection, uint8_t channel, uint16_t max_frame_size);
|
---|
| 393 |
|
---|
| 394 | // Registers RFCOMM service for a server channel and a maximum frame size, and assigns a packet handler. On embedded systems, use NULL for connection parameter.
|
---|
| 395 | // This channel will use explicit credit management. During channel establishment, an initial amount of credits is provided.
|
---|
| 396 | void rfcomm_register_service_with_initial_credits_internal(void * connection, uint8_t channel, uint16_t max_frame_size, uint8_t initial_credits);
|
---|
| 397 |
|
---|
| 398 | // Unregister RFCOMM service.
|
---|
| 399 | void rfcomm_unregister_service_internal(uint8_t service_channel);
|
---|
| 400 |
|
---|
| 401 | // Accepts/Deny incoming RFCOMM connection.
|
---|
| 402 | void rfcomm_accept_connection_internal(uint16_t rfcomm_cid);
|
---|
| 403 | void rfcomm_decline_connection_internal(uint16_t rfcomm_cid);
|
---|
| 404 |
|
---|
| 405 | // Grant more incoming credits to the remote side for the given RFCOMM channel identifier.
|
---|
| 406 | void rfcomm_grant_credits(uint16_t rfcomm_cid, uint8_t credits);
|
---|
| 407 |
|
---|
| 408 | // Checks if RFCOMM can send packet. Returns yes if packet can be sent.
|
---|
| 409 | int rfcomm_can_send_packet_now(uint16_t rfcomm_cid);
|
---|
| 410 |
|
---|
| 411 | // Sends RFCOMM data packet to the RFCOMM channel with given identifier.
|
---|
| 412 | int rfcomm_send_internal(uint16_t rfcomm_cid, uint8_t *data, uint16_t len);
|
---|
| 413 |
|
---|
| 414 | // Sends Local Lnie Status, see LINE_STATUS_..
|
---|
| 415 | int rfcomm_send_local_line_status(uint16_t rfcomm_cid, uint8_t line_status);
|
---|
| 416 |
|
---|
| 417 | // Sned local modem status. see MODEM_STAUS_..
|
---|
| 418 | int rfcomm_send_modem_status(uint16_t rfcomm_cid, uint8_t modem_status);
|
---|
| 419 |
|
---|
| 420 | // Configure remote port
|
---|
| 421 | int rfcomm_send_port_configuration(uint16_t rfcomm_cid, rpn_baud_t baud_rate, rpn_data_bits_t data_bits, rpn_stop_bits_t stop_bits, rpn_parity_t parity, rpn_flow_control_t flow_control);
|
---|
| 422 |
|
---|
| 423 | // Query remote port
|
---|
| 424 | int rfcomm_query_port_configuration(uint16_t rfcomm_cid);
|
---|
| 425 |
|
---|
| 426 | // allow to create rfcomm packet in outgoing buffer
|
---|
| 427 | int rfcomm_reserve_packet_buffer(void);
|
---|
| 428 | void rfcomm_release_packet_buffer(void);
|
---|
| 429 | uint8_t * rfcomm_get_outgoing_buffer(void);
|
---|
| 430 | uint16_t rfcomm_get_max_frame_size(uint16_t rfcomm_cid);
|
---|
| 431 | int rfcomm_send_prepared(uint16_t rfcomm_cid, uint16_t len);
|
---|
| 432 |
|
---|
| 433 | #if defined __cplusplus
|
---|
| 434 | }
|
---|
| 435 | #endif
|
---|
| 436 |
|
---|
| 437 | #endif // __RFCOMM_H
|
---|