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/******************************************************************************
*
* Copyright 2009-2012 Broadcom Corporation
*
* 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.
*
******************************************************************************/
/******************************************************************************
*
* Filename: bta_pan_co.c
*
* Description: PAN stack callout api
*
*
******************************************************************************/
#include "bta_pan_co.h"
#include <base/logging.h>
#include <hardware/bluetooth.h>
#include <hardware/bt_pan.h>
#include <string.h>
#include "bta_api.h"
#include "bta_pan_api.h"
#include "bta_pan_ci.h"
#include "btif_pan_internal.h"
#include "btif_sock_thread.h"
#include "btif_util.h"
#include "osi/include/allocator.h"
#include "osi/include/osi.h"
#include "pan_api.h"
#include "stack/include/bt_hdr.h"
#include "types/raw_address.h"
/*******************************************************************************
*
* Function bta_pan_co_init
*
* Description
*
*
* Returns Data flow mask.
*
******************************************************************************/
uint8_t bta_pan_co_init(uint8_t* q_level) {
BTIF_TRACE_API("bta_pan_co_init");
/* set the q_level to 30 buffers */
*q_level = 30;
// return (BTA_PAN_RX_PULL | BTA_PAN_TX_PULL);
return (BTA_PAN_RX_PUSH_BUF | BTA_PAN_RX_PUSH | BTA_PAN_TX_PULL);
}
/*******************************************************************************
*
* Function bta_pan_co_close
*
* Description This function is called by PAN when a connection to a
* peer is closed.
*
*
* Returns void
*
******************************************************************************/
void bta_pan_co_close(uint16_t handle, uint8_t app_id) {
BTIF_TRACE_API("bta_pan_co_close:app_id:%d, handle:%d", app_id, handle);
btpan_conn_t* conn = btpan_find_conn_handle(handle);
if (conn && conn->state == PAN_STATE_OPEN) {
BTIF_TRACE_DEBUG("bta_pan_co_close");
// let bta close event reset this handle as it needs
// the handle to find the connection upon CLOSE
// conn->handle = -1;
conn->state = PAN_STATE_CLOSE;
btpan_cb.open_count--;
if (btpan_cb.open_count == 0 && btpan_cb.tap_fd != -1) {
btpan_tap_close(btpan_cb.tap_fd);
btpan_cb.tap_fd = -1;
}
}
}
/*******************************************************************************
*
* Function bta_pan_co_tx_path
*
* Description This function is called by PAN to transfer data on the
* TX path; that is, data being sent from BTA to the phone.
* This function is used when the TX data path is configured
* to use the pull interface. The implementation of this
* function will typically call Bluetooth stack functions
* PORT_Read() or PORT_ReadData() to read data from RFCOMM
* and then a platform-specific function to send data that
* data to the phone.
*
*
* Returns void
*
******************************************************************************/
void bta_pan_co_tx_path(uint16_t handle, uint8_t app_id) {
BT_HDR* p_buf;
RawAddress src;
RawAddress dst;
uint16_t protocol;
bool ext;
bool forward;
BTIF_TRACE_API("%s, handle:%d, app_id:%d", __func__, handle, app_id);
btpan_conn_t* conn = btpan_find_conn_handle(handle);
if (!conn) {
BTIF_TRACE_ERROR("%s: cannot find pan connection", __func__);
return;
} else if (conn->state != PAN_STATE_OPEN) {
BTIF_TRACE_ERROR("%s: conn is not opened, conn:%p, conn->state:%d",
__func__, conn, conn->state);
return;
}
do {
/* read next data buffer from pan */
p_buf = bta_pan_ci_readbuf(handle, src, dst, &protocol, &ext, &forward);
if (p_buf) {
BTIF_TRACE_DEBUG(
"%s, calling btapp_tap_send, "
"p_buf->len:%d, offset:%d",
__func__, p_buf->len, p_buf->offset);
if (is_empty_eth_addr(conn->eth_addr) && is_valid_bt_eth_addr(src)) {
VLOG(1) << __func__ << " pan bt peer addr: " << conn->peer
<< " update its ethernet addr: " << src;
conn->eth_addr = src;
}
btpan_tap_send(btpan_cb.tap_fd, src, dst, protocol,
(char*)(p_buf + 1) + p_buf->offset, p_buf->len, ext,
forward);
osi_free(p_buf);
}
} while (p_buf != NULL);
}
/*******************************************************************************
*
* Function bta_pan_co_rx_path
*
* Description
*
*
*
*
* Returns void
*
******************************************************************************/
void bta_pan_co_rx_path(UNUSED_ATTR uint16_t handle,
UNUSED_ATTR uint8_t app_id) {
BTIF_TRACE_API("bta_pan_co_rx_path not used");
}
/*******************************************************************************
*
* Function bta_pan_co_rx_flow
*
* Description This function is called by PAN to enable or disable
* data flow on the RX path when it is configured to use
* a push interface. If data flow is disabled the phone must
* not call bta_pan_ci_rx_write() or bta_pan_ci_rx_writebuf()
* until data flow is enabled again.
*
*
* Returns void
*
******************************************************************************/
void bta_pan_co_rx_flow(UNUSED_ATTR uint16_t handle, UNUSED_ATTR uint8_t app_id,
UNUSED_ATTR bool enable) {
BTIF_TRACE_API("bta_pan_co_rx_flow, enabled:%d, not used", enable);
btpan_conn_t* conn = btpan_find_conn_handle(handle);
if (!conn || conn->state != PAN_STATE_OPEN) return;
btpan_set_flow_control(enable);
}
/*******************************************************************************
*
* Function bta_pan_co_filt_ind
*
* Description protocol filter indication from peer device
*
* Returns void
*
******************************************************************************/
void bta_pan_co_pfilt_ind(UNUSED_ATTR uint16_t handle,
UNUSED_ATTR bool indication,
UNUSED_ATTR tBTA_PAN_STATUS result,
UNUSED_ATTR uint16_t len,
UNUSED_ATTR uint8_t* p_filters) {
BTIF_TRACE_API("bta_pan_co_pfilt_ind");
}
/*******************************************************************************
*
* Function bta_pan_co_mfilt_ind
*
* Description multicast filter indication from peer device
*
* Returns void
*
******************************************************************************/
void bta_pan_co_mfilt_ind(UNUSED_ATTR uint16_t handle,
UNUSED_ATTR bool indication,
UNUSED_ATTR tBTA_PAN_STATUS result,
UNUSED_ATTR uint16_t len,
UNUSED_ATTR uint8_t* p_filters) {
BTIF_TRACE_API("bta_pan_co_mfilt_ind");
}
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