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376961d168
* Update IDF to 65acd99 * Update platformio and arduino build paths and libs * Update esptool binaries
81 lines
3.7 KiB
C
81 lines
3.7 KiB
C
/******************************************************************************
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*
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* Copyright (C) 2014 Google, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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******************************************************************************/
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#ifndef _L2CAP_CLIENT_H_
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#define _L2CAP_CLIENT_H_
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#if (defined(L2CAP_CLIENT_INCLUDED) && L2CAP_CLIENT_INCLUDED == TRUE)
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//#include <hardware/bluetooth.h>
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#include <stdbool.h>
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#include <stdint.h>
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typedef struct buffer_t buffer_t;
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typedef struct l2cap_client_t l2cap_client_t;
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typedef struct {
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void (*connected)(l2cap_client_t *client, void *context);
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void (*disconnected)(l2cap_client_t *client, void *context);
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void (*read_ready)(l2cap_client_t *client, buffer_t *packet, void *context);
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void (*write_ready)(l2cap_client_t *client, void *context);
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} l2cap_client_callbacks_t;
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// Returns a new buffer with enough space for |size| bytes of L2CAP payload.
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// |size| must be greater than zero. This function returns NULL if the buffer
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// could not be allocated. The returned buffer must be freed with |buffer_free|
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// when it is no longer needed.
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buffer_t *l2cap_buffer_new(size_t size);
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// Creates and returns a new L2CAP client object. |callbacks| must not be NULL and
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// must specify a set of functions that should be called back when events occur
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// on the L2CAP connection. |context| may be NULL and will be passed as the argument
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// to all callbacks in |l2cap_client_callbacks_t|. The returned object must be freed
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// with |l2cap_client_free|.
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l2cap_client_t *l2cap_client_new(const l2cap_client_callbacks_t *callbacks, void *context);
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// Frees the L2CAP client object allocated with |l2cap_client_new|. |client| may be NULL.
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void l2cap_client_free(l2cap_client_t *client);
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// Attempts to connect the |client| to a peer device specified by |remote_bdaddr|
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// using the |psm| protocol specifier. This function returns true if the connect
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// operation could be started and will indicate completion with either a 'connected'
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// callback (success) or a 'disconnected' callback (failure).
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//
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// This function must not be called while a connect operation is in progress or
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// while |l2cap_client_is_connected|. |client| and |remote_bdaddr| must not be NULL.
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// |psm| must be greater than zero.
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bool l2cap_client_connect(l2cap_client_t *client, const bt_bdaddr_t *remote_bdaddr, uint16_t psm);
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// Disconnects a connected |client|. This function is asynchronous and idempotent. It
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// will indicate completion with a 'disconnected' callback. |client| must not be NULL.
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void l2cap_client_disconnect(l2cap_client_t *client);
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// Returns true if |client| is connected and is ready to accept data written to it.
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// |client| must not be NULL.
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bool l2cap_client_is_connected(const l2cap_client_t *client);
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// Writes data contained in |packet| to a connected |client|. This function returns
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// true if the packet was successfully queued for delivery, false if the client cannot
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// accept more data at this time. If this function returns false, the caller must wait
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// for the 'write_ready' callback to write additional data to the client. Neither
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// |client| nor |packet| may be NULL.
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bool l2cap_client_write(l2cap_client_t *client, buffer_t *packet);
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#endif ///(defined(L2CAP_CLIENT_INCLUDED) && L2CAP_CLIENT_INCLUDED == TRUE)
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#endif /*_L2CAP_CLIENT_H_*/
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