esp-idf/components/bt/bluedroid/hci/hci_packet_factory.c
Tian Hao 6648ff427c component/bt : fix connection bug of Iphone7 10.0.2
This connection error caused by iPhone, it think that TX data length must large than 27 when slave support EXTEND_DATA_LENGTH. But this should be allow. Besides,  the problem cannot be found on higher version of Iphone7, apple seemed to have fixed it.
Actually maybe other BLE device have the same problem.
2017-02-16 14:15:46 +08:00

238 lines
6.7 KiB
C

/******************************************************************************
*
* Copyright (C) 2014 Google, Inc.
*
* 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.
*
******************************************************************************/
#include "bt_defs.h"
#include "allocator.h"
#include "bt_types.h"
#include "buffer_allocator.h"
#include "hcidefs.h"
#include "hcimsgs.h"
#include "hci_internals.h"
#include "hci_layer.h"
#include "hci_packet_factory.h"
static const allocator_t *buffer_allocator;
static BT_HDR *make_packet(size_t data_size);
static BT_HDR *make_command_no_params(uint16_t opcode);
static BT_HDR *make_command(uint16_t opcode, size_t parameter_size, uint8_t **stream_out);
// Interface functions
static BT_HDR *make_reset(void)
{
return make_command_no_params(HCI_RESET);
}
static BT_HDR *make_read_buffer_size(void)
{
return make_command_no_params(HCI_READ_BUFFER_SIZE);
}
static BT_HDR *make_host_buffer_size(uint16_t acl_size, uint8_t sco_size, uint16_t acl_count, uint16_t sco_count)
{
uint8_t *stream;
const uint8_t parameter_size = 2 + 1 + 2 + 2; // from each of the parameters
BT_HDR *packet = make_command(HCI_HOST_BUFFER_SIZE, parameter_size, &stream);
UINT16_TO_STREAM(stream, acl_size);
UINT8_TO_STREAM(stream, sco_size);
UINT16_TO_STREAM(stream, acl_count);
UINT16_TO_STREAM(stream, sco_count);
return packet;
}
static BT_HDR *make_read_local_version_info(void)
{
return make_command_no_params(HCI_READ_LOCAL_VERSION_INFO);
}
static BT_HDR *make_read_bd_addr(void)
{
return make_command_no_params(HCI_READ_BD_ADDR);
}
static BT_HDR *make_read_local_supported_commands(void)
{
return make_command_no_params(HCI_READ_LOCAL_SUPPORTED_CMDS);
}
static BT_HDR *make_read_local_extended_features(uint8_t page_number)
{
uint8_t *stream;
const uint8_t parameter_size = 1;
BT_HDR *packet = make_command(HCI_READ_LOCAL_EXT_FEATURES, parameter_size, &stream);
UINT8_TO_STREAM(stream, page_number);
return packet;
}
static BT_HDR *make_write_simple_pairing_mode(uint8_t mode)
{
uint8_t *stream;
const uint8_t parameter_size = 1;
BT_HDR *packet = make_command(HCI_WRITE_SIMPLE_PAIRING_MODE, parameter_size, &stream);
UINT8_TO_STREAM(stream, mode);
return packet;
}
static BT_HDR *make_write_secure_connections_host_support(uint8_t mode)
{
uint8_t *stream;
const uint8_t parameter_size = 1;
BT_HDR *packet = make_command(HCI_WRITE_SECURE_CONNS_SUPPORT, parameter_size, &stream);
UINT8_TO_STREAM(stream, mode);
return packet;
}
static BT_HDR *make_set_event_mask(const bt_event_mask_t *event_mask)
{
uint8_t *stream;
uint8_t parameter_size = sizeof(bt_event_mask_t);
BT_HDR *packet = make_command(HCI_SET_EVENT_MASK, parameter_size, &stream);
ARRAY8_TO_STREAM(stream, event_mask->as_array);
return packet;
}
static BT_HDR *make_ble_write_host_support(uint8_t supported_host, uint8_t simultaneous_host)
{
uint8_t *stream;
const uint8_t parameter_size = 1 + 1;
BT_HDR *packet = make_command(HCI_WRITE_LE_HOST_SUPPORT, parameter_size, &stream);
UINT8_TO_STREAM(stream, supported_host);
UINT8_TO_STREAM(stream, simultaneous_host);
return packet;
}
static BT_HDR *make_ble_read_white_list_size(void)
{
return make_command_no_params(HCI_BLE_READ_WHITE_LIST_SIZE);
}
static BT_HDR *make_ble_read_buffer_size(void)
{
return make_command_no_params(HCI_BLE_READ_BUFFER_SIZE);
}
static BT_HDR *make_ble_read_supported_states(void)
{
return make_command_no_params(HCI_BLE_READ_SUPPORTED_STATES);
}
static BT_HDR *make_ble_read_local_supported_features(void)
{
return make_command_no_params(HCI_BLE_READ_LOCAL_SPT_FEAT);
}
static BT_HDR *make_ble_read_resolving_list_size(void)
{
return make_command_no_params(HCI_BLE_READ_RESOLVING_LIST_SIZE);
}
static BT_HDR *make_ble_read_suggested_default_data_length(void)
{
return make_command_no_params(HCI_BLE_READ_DEFAULT_DATA_LENGTH);
}
static BT_HDR *make_ble_write_suggested_default_data_length(uint16_t SuggestedMaxTxOctets, uint16_t SuggestedMaxTxTime)
{
uint8_t *stream;
uint8_t parameter_size = sizeof(uint16_t) + sizeof(uint16_t);
BT_HDR *packet = make_command(HCI_BLE_WRITE_DEFAULT_DATA_LENGTH, parameter_size, &stream);
UINT16_TO_STREAM(stream, SuggestedMaxTxOctets);
UINT16_TO_STREAM(stream, SuggestedMaxTxTime);
return packet;
}
static BT_HDR *make_ble_set_event_mask(const bt_event_mask_t *event_mask)
{
uint8_t *stream;
uint8_t parameter_size = sizeof(bt_event_mask_t);
BT_HDR *packet = make_command(HCI_BLE_SET_EVENT_MASK, parameter_size, &stream);
ARRAY8_TO_STREAM(stream, event_mask->as_array);
return packet;
}
// Internal functions
static BT_HDR *make_command_no_params(uint16_t opcode)
{
return make_command(opcode, 0, NULL);
}
static BT_HDR *make_command(uint16_t opcode, size_t parameter_size, uint8_t **stream_out)
{
BT_HDR *packet = make_packet(HCI_COMMAND_PREAMBLE_SIZE + parameter_size);
uint8_t *stream = packet->data;
UINT16_TO_STREAM(stream, opcode);
UINT8_TO_STREAM(stream, parameter_size);
if (stream_out != NULL) {
*stream_out = stream;
}
return packet;
}
static BT_HDR *make_packet(size_t data_size)
{
BT_HDR *ret = (BT_HDR *)buffer_allocator->alloc(sizeof(BT_HDR) + data_size);
assert(ret);
ret->event = 0;
ret->offset = 0;
ret->layer_specific = 0;
ret->len = data_size;
return ret;
}
static const hci_packet_factory_t interface = {
make_reset,
make_read_buffer_size,
make_host_buffer_size,
make_read_local_version_info,
make_read_bd_addr,
make_read_local_supported_commands,
make_read_local_extended_features,
make_write_simple_pairing_mode,
make_write_secure_connections_host_support,
make_set_event_mask,
make_ble_write_host_support,
make_ble_read_white_list_size,
make_ble_read_buffer_size,
make_ble_read_supported_states,
make_ble_read_local_supported_features,
make_ble_read_resolving_list_size,
make_ble_read_suggested_default_data_length,
make_ble_write_suggested_default_data_length,
make_ble_set_event_mask
};
const hci_packet_factory_t *hci_packet_factory_get_interface()
{
buffer_allocator = buffer_allocator_get_interface();
return &interface;
}