// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. #ifndef __ESP_SPP_API_H__ #define __ESP_SPP_API_H__ #include "esp_err.h" #include "esp_bt_defs.h" #ifdef __cplusplus extern "C" { #endif typedef enum { ESP_SPP_SUCCESS = 0, /*!< Successful operation. */ ESP_SPP_FAILURE, /*!< Generic failure. */ ESP_SPP_BUSY, /*!< Temporarily can not handle this request. */ ESP_SPP_NO_DATA, /*!< no data. */ ESP_SPP_NO_RESOURCE /*!< No more set pm control block */ } esp_spp_status_t; /* Security Setting Mask */ #define ESP_SPP_SEC_NONE 0x0000 /*!< No security. relate to BTA_SEC_NONE in bta/bta_api.h */ #define ESP_SPP_SEC_AUTHORIZE 0x0001 /*!< Authorization required (only needed for out going connection ) relate to BTA_SEC_AUTHORIZE in bta/bta_api.h*/ #define ESP_SPP_SEC_AUTHENTICATE 0x0012 /*!< Authentication required. relate to BTA_SEC_AUTHENTICATE in bta/bta_api.h*/ #define ESP_SPP_SEC_ENCRYPT 0x0024 /*!< Encryption required. relate to BTA_SEC_ENCRYPT in bta/bta_api.h*/ #define ESP_SPP_SEC_MODE4_LEVEL4 0x0040 /*!< Mode 4 level 4 service, i.e. incoming/outgoing MITM and P-256 encryption relate to BTA_SEC_MODE4_LEVEL4 in bta/bta_api.h*/ #define ESP_SPP_SEC_MITM 0x3000 /*!< Man-In-The_Middle protection relate to BTA_SEC_MITM in bta/bta_api.h*/ #define ESP_SPP_SEC_IN_16_DIGITS 0x4000 /*!< Min 16 digit for pin code relate to BTA_SEC_IN_16_DIGITS in bta/bta_api.h*/ typedef uint16_t esp_spp_sec_t; typedef enum { ESP_SPP_ROLE_MASTER = 0, /*!< Role: master */ ESP_SPP_ROLE_SLAVE = 1, /*!< Role: slave */ } esp_spp_role_t; typedef enum { ESP_SPP_MODE_CB = 0, /*!< When data is coming, a callback will come with data */ ESP_SPP_MODE_VFS = 1, /*!< Use VFS to write/read data */ } esp_spp_mode_t; #define ESP_SPP_MAX_MTU (3*330) /*!< SPP max MTU */ #define ESP_SPP_MAX_SCN 31 /*!< SPP max SCN */ /** * @brief SPP callback function events */ typedef enum { ESP_SPP_INIT_EVT = 0, /*!< When SPP is inited, the event comes */ ESP_SPP_DISCOVERY_COMP_EVT = 8, /*!< When SDP discovery complete, the event comes */ ESP_SPP_OPEN_EVT = 26, /*!< When SPP Client connection open, the event comes */ ESP_SPP_CLOSE_EVT = 27, /*!< When SPP connection closed, the event comes */ ESP_SPP_START_EVT = 28, /*!< When SPP server started, the event comes */ ESP_SPP_CL_INIT_EVT = 29, /*!< When SPP client initiated a connection, the event comes */ ESP_SPP_DATA_IND_EVT = 30, /*!< When SPP connection received data, the event comes, only for ESP_SPP_MODE_CB */ ESP_SPP_CONG_EVT = 31, /*!< When SPP connection congestion status changed, the event comes, only for ESP_SPP_MODE_CB */ ESP_SPP_WRITE_EVT = 33, /*!< When SPP write operation completes, the event comes, only for ESP_SPP_MODE_CB */ ESP_SPP_SRV_OPEN_EVT = 34, /*!< When SPP Server connection open, the event comes */ } esp_spp_cb_event_t; /** * @brief SPP callback parameters union */ typedef union { /** * @brief SPP_INIT_EVT */ struct spp_init_evt_param { esp_spp_status_t status; /*!< status */ } init; /*!< SPP callback param of SPP_INIT_EVT */ /** * @brief SPP_DISCOVERY_COMP_EVT */ struct spp_discovery_comp_evt_param { esp_spp_status_t status; /*!< status */ uint8_t scn_num; /*!< The num of scn_num */ uint8_t scn[ESP_SPP_MAX_SCN]; /*!< channel # */ } disc_comp; /*!< SPP callback param of SPP_DISCOVERY_COMP_EVT */ /** * @brief ESP_SPP_OPEN_EVT */ struct spp_open_evt_param { esp_spp_status_t status; /*!< status */ uint32_t handle; /*!< The connection handle */ int fd; /*!< The file descriptor only for ESP_SPP_MODE_VFS */ esp_bd_addr_t rem_bda; /*!< The peer address */ } open; /*!< SPP callback param of ESP_SPP_OPEN_EVT */ /** * @brief ESP_SPP_SRV_OPEN_EVT */ struct spp_srv_open_evt_param { esp_spp_status_t status; /*!< status */ uint32_t handle; /*!< The connection handle */ uint32_t new_listen_handle; /*!< The new listen handle */ int fd; /*!< The file descriptor only for ESP_SPP_MODE_VFS */ esp_bd_addr_t rem_bda; /*!< The peer address */ } srv_open; /*!< SPP callback param of ESP_SPP_SRV_OPEN_EVT */ /** * @brief ESP_SPP_CLOSE_EVT */ struct spp_close_evt_param { esp_spp_status_t status; /*!< status */ uint32_t port_status; /*!< PORT status */ uint32_t handle; /*!< The connection handle */ bool async; /*!< FALSE, if local initiates disconnect */ } close; /*!< SPP callback param of ESP_SPP_CLOSE_EVT */ /** * @brief ESP_SPP_START_EVT */ struct spp_start_evt_param { esp_spp_status_t status; /*!< status */ uint32_t handle; /*!< The connection handle */ uint8_t sec_id; /*!< security ID used by this server */ bool use_co; /*!< TRUE to use co_rfc_data */ } start; /*!< SPP callback param of ESP_SPP_START_EVT */ /** * @brief ESP_SPP_CL_INIT_EVT */ struct spp_cl_init_evt_param { esp_spp_status_t status; /*!< status */ uint32_t handle; /*!< The connection handle */ uint8_t sec_id; /*!< security ID used by this server */ bool use_co; /*!< TRUE to use co_rfc_data */ } cl_init; /*!< SPP callback param of ESP_SPP_CL_INIT_EVT */ /** * @brief ESP_SPP_WRITE_EVT */ struct spp_write_evt_param { esp_spp_status_t status; /*!< status */ uint32_t handle; /*!< The connection handle */ int len; /*!< The length of the data written. */ bool cong; /*!< congestion status */ } write; /*!< SPP callback param of ESP_SPP_WRITE_EVT */ /** * @brief ESP_SPP_DATA_IND_EVT */ struct spp_data_ind_evt_param { esp_spp_status_t status; /*!< status */ uint32_t handle; /*!< The connection handle */ uint16_t len; /*!< The length of data */ uint8_t *data; /*!< The data received */ } data_ind; /*!< SPP callback param of ESP_SPP_DATA_IND_EVT */ /** * @brief ESP_SPP_CONG_EVT */ struct spp_cong_evt_param { esp_spp_status_t status; /*!< status */ uint32_t handle; /*!< The connection handle */ bool cong; /*!< TRUE, congested. FALSE, uncongested */ } cong; /*!< SPP callback param of ESP_SPP_CONG_EVT */ } esp_spp_cb_param_t; /*!< SPP callback parameter union type */ /** * @brief SPP callback function type * @param event: Event type * @param param: Point to callback parameter, currently is union type */ typedef void (esp_spp_cb_t)(esp_spp_cb_event_t event, esp_spp_cb_param_t *param); /** * @brief This function is called to init callbacks * with SPP module. * * @param[in] callback: pointer to the init callback function. * * @return * - ESP_OK: success * - other: failed */ esp_err_t esp_spp_register_callback(esp_spp_cb_t callback); /** * @brief This function is called to init SPP. * * @param[in] mode: Choose the mode of SPP, ESP_SPP_MODE_CB or ESP_SPP_MODE_CB. * Now only supports ESP_SPP_MODE_CB mode, we will continue to update. * * @return * - ESP_OK: success * - other: failed */ esp_err_t esp_spp_init(esp_spp_mode_t mode); /** * @brief This function is called to uninit SPP. * * @return * - ESP_OK: success * - other: failed */ esp_err_t esp_spp_deinit(); /** * @brief This function is called to performs service discovery for * the services provided by the given peer device. When the * operation is complete the callback function will be called * with a ESP_SPP_DISCOVERY_COMP_EVT. * * @param[in] bd_addr: Remote device bluetooth device address. * * @return * - ESP_OK: success * - other: failed */ esp_err_t esp_spp_start_discovery(esp_bd_addr_t bd_addr); /** * @brief This function makes an SPP connection to a remote BD Address. * When the connection is initiated or failed to initiate, * the callback is called with ESP_SPP_CL_INIT_EVT. * When the connection is established or failed, * the callback is called with ESP_SPP_OPEN_EVT. * * @param[in] sec_mask: Security Setting Mask . * @param[in] role: Master or slave. * @param[in] remote_scn: Remote device bluetooth device SCN. * @param[in] peer_bd_addr: Remote device bluetooth device address. * * @return * - ESP_OK: success * - other: failed */ esp_err_t esp_spp_connect(esp_spp_sec_t sec_mask, esp_spp_role_t role, uint8_t remote_scn, esp_bd_addr_t peer_bd_addr); /** * @brief This function closes an SPP connection. * * @param[in] handle: The connection handle. * * @return * - ESP_OK: success * - other: failed */ esp_err_t esp_spp_disconnect(uint32_t handle); /** * @brief This function create a SPP server and starts listening for an * SPP connection request from a remote Bluetooth device. * When the server is started successfully, the callback is called * with ESP_SPP_START_EVT. * When the connection is established, the callback is called * with ESP_SPP_SRV_OPEN_EVT. * * @param[in] sec_mask: Security Setting Mask . * @param[in] role: Master or slave. * @param[in] local_scn: The specific channel you want to get. * If channel is 0, means get any channel. * @param[in] name: Server's name. * * @return * - ESP_OK: success * - other: failed */ esp_err_t esp_spp_start_srv(esp_spp_sec_t sec_mask, esp_spp_role_t role, uint8_t local_scn, const char *name); /** * @brief This function is used to write data, only for ESP_SPP_MODE_CB. * * @param[in] handle: The connection handle. * @param[in] len: The length of the data written. * @param[in] p_data: The data written. * * @return * - ESP_OK: success * - other: failed */ esp_err_t esp_spp_write(uint32_t handle, int len, uint8_t *p_data); /** * @brief This function is used to register VFS. * * @return * - ESP_OK: success * - other: failed */ esp_err_t esp_spp_vfs_register(void); #ifdef __cplusplus } #endif #endif ///__ESP_SPP_API_H__