/******************************************************************************
*
* Copyright 2004-2012 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.
*
******************************************************************************/
/******************************************************************************
*
* This is the implementation file for data gateway call-in functions.
*
******************************************************************************/
#include "bt_target.h"
#include <string.h>
#include "bt_common.h"
#include "bt_utils.h"
#include "bta_api.h"
#include "bta_pan_api.h"
#include "bta_pan_ci.h"
#include "bta_pan_int.h"
#include "osi/include/osi.h"
#include "pan_api.h"
#if (BTA_PAN_INCLUDED == TRUE)
/*******************************************************************************
*
* Function bta_pan_ci_tx_ready
*
* Description This function sends an event to PAN indicating the phone is
* ready for more data and PAN should call
* bta_pan_co_tx_path().
* This function is used when the TX data path is configured
* to use a pull interface.
*
*
* Returns void
*
******************************************************************************/
void bta_pan_ci_tx_ready(uint16_t handle) {
BT_HDR* p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR));
p_buf->layer_specific = handle;
p_buf->event = BTA_PAN_CI_TX_READY_EVT;
bta_sys_sendmsg(p_buf);
}
/*******************************************************************************
*
* Function bta_pan_ci_rx_ready
*
* Description This function sends an event to PAN indicating the phone
* has data available to send to PAN and PAN should call
* bta_pan_co_rx_path(). This function is used when the RX
* data path is configured to use a pull interface.
*
*
* Returns void
*
******************************************************************************/
void bta_pan_ci_rx_ready(uint16_t handle) {
BT_HDR* p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR));
p_buf->layer_specific = handle;
p_buf->event = BTA_PAN_CI_RX_READY_EVT;
bta_sys_sendmsg(p_buf);
}
/*******************************************************************************
*
* Function bta_pan_ci_tx_flow
*
* Description This function is called to enable or disable data flow on
* the TX path. The phone should call this function to
* disable data flow when it is congested and cannot handle
* any more data sent by bta_pan_co_tx_write() or
* bta_pan_co_tx_writebuf(). This function is used when the
* TX data path is configured to use a push interface.
*
*
* Returns void
*
******************************************************************************/
void bta_pan_ci_tx_flow(uint16_t handle, bool enable) {
tBTA_PAN_CI_TX_FLOW* p_buf =
(tBTA_PAN_CI_TX_FLOW*)osi_malloc(sizeof(tBTA_PAN_CI_TX_FLOW));
p_buf->hdr.layer_specific = handle;
p_buf->hdr.event = BTA_PAN_CI_TX_FLOW_EVT;
p_buf->enable = enable;
bta_sys_sendmsg(p_buf);
}
/*******************************************************************************
*
* Function bta_pan_ci_rx_write
*
* Description This function is called to send data to PAN when the RX path
* is configured to use a push interface. The function copies
* data to an event buffer and sends it to PAN.
*
*
* Returns void
*
******************************************************************************/
void bta_pan_ci_rx_write(uint16_t handle, const RawAddress& dst,
const RawAddress& src, uint16_t protocol,
uint8_t* p_data, uint16_t len, bool ext) {
BT_HDR* p_buf = (BT_HDR*)osi_malloc(PAN_BUF_SIZE);
p_buf->offset = PAN_MINIMUM_OFFSET;
/* copy all other params before the data */
((tBTA_PAN_DATA_PARAMS*)p_buf)->src = src;
((tBTA_PAN_DATA_PARAMS*)p_buf)->dst = dst;
((tBTA_PAN_DATA_PARAMS*)p_buf)->protocol = protocol;
((tBTA_PAN_DATA_PARAMS*)p_buf)->ext = ext;
p_buf->len = len;
/* copy data */
memcpy((uint8_t*)(p_buf + 1) + p_buf->offset, p_data, len);
p_buf->layer_specific = handle;
p_buf->event = BTA_PAN_CI_RX_WRITEBUF_EVT;
bta_sys_sendmsg(p_buf);
}
/*******************************************************************************
*
* Function bta_pan_ci_rx_writebuf
*
* Description This function is called to send data to the phone when
* the RX path is configured to use a push interface with
* zero copy. The function sends an event to PAN containing
* the data buffer. The buffer will be freed by BTA; the
* phone must not free the buffer.
*
*
* Returns void
*
******************************************************************************/
void bta_pan_ci_rx_writebuf(uint16_t handle, const RawAddress& dst,
const RawAddress& src, uint16_t protocol,
BT_HDR* p_buf, bool ext) {
/* copy all other params before the data */
((tBTA_PAN_DATA_PARAMS*)p_buf)->src = src;
((tBTA_PAN_DATA_PARAMS*)p_buf)->dst = dst;
((tBTA_PAN_DATA_PARAMS*)p_buf)->protocol = protocol;
((tBTA_PAN_DATA_PARAMS*)p_buf)->ext = ext;
p_buf->layer_specific = handle;
p_buf->event = BTA_PAN_CI_RX_WRITEBUF_EVT;
bta_sys_sendmsg(p_buf);
}
/*******************************************************************************
*
* Function bta_pan_ci_readbuf
*
* Description
*
*
* Returns void
*
******************************************************************************/
BT_HDR* bta_pan_ci_readbuf(uint16_t handle, RawAddress& src, RawAddress& dst,
uint16_t* p_protocol, bool* p_ext, bool* p_forward) {
tBTA_PAN_SCB* p_scb = bta_pan_scb_by_handle(handle);
BT_HDR* p_buf;
if (p_scb == NULL) return NULL;
p_buf = (BT_HDR*)fixed_queue_try_dequeue(p_scb->data_queue);
if (p_buf != NULL) {
src = ((tBTA_PAN_DATA_PARAMS*)p_buf)->src;
dst = ((tBTA_PAN_DATA_PARAMS*)p_buf)->dst;
*p_protocol = ((tBTA_PAN_DATA_PARAMS*)p_buf)->protocol;
*p_ext = ((tBTA_PAN_DATA_PARAMS*)p_buf)->ext;
*p_forward = ((tBTA_PAN_DATA_PARAMS*)p_buf)->forward;
}
return p_buf;
}
/*******************************************************************************
*
* Function bta_pan_ci_set_mfilters
*
* Description This function is called to set multicast filters
*
*
* Returns void
*
******************************************************************************/
void bta_pan_ci_set_mfilters(uint16_t handle, uint16_t num_mcast_filters,
uint8_t* p_start_array, uint8_t* p_end_array) {
PAN_SetMulticastFilters(handle, num_mcast_filters, p_start_array,
p_end_array);
}
/*******************************************************************************
*
* Function bta_pan_ci_set_mfilters
*
* Description This function is called to set protocol filters
*
*
* Returns void
*
******************************************************************************/
void bta_pan_ci_set_pfilters(uint16_t handle, uint16_t num_filters,
uint16_t* p_start_array, uint16_t* p_end_array) {
PAN_SetProtocolFilters(handle, num_filters, p_start_array, p_end_array);
}
#else
void bta_pan_ci_tx_ready(UNUSED_ATTR uint16_t handle) {}
void bta_pan_ci_rx_ready(UNUSED_ATTR uint16_t handle) {}
void bta_pan_ci_tx_flow(UNUSED_ATTR uint16_t handle, UNUSED_ATTR bool enable) {}
void bta_pan_ci_rx_writebuf(UNUSED_ATTR uint16_t handle,
UNUSED_ATTR const RawAddress& src,
UNUSED_ATTR const RawAddress& dst,
UNUSED_ATTR uint16_t protocol,
UNUSED_ATTR BT_HDR* p_buf, UNUSED_ATTR bool ext) {}
BT_HDR* bta_pan_ci_readbuf(UNUSED_ATTR uint16_t handle,
UNUSED_ATTR RawAddress& src,
UNUSED_ATTR RawAddress& dst,
UNUSED_ATTR uint16_t* p_protocol,
UNUSED_ATTR bool* p_ext,
UNUSED_ATTR bool* p_forward) {
return NULL;
}
void bta_pan_ci_set_pfilters(UNUSED_ATTR uint16_t handle,
UNUSED_ATTR uint16_t num_filters,
UNUSED_ATTR uint16_t* p_start_array,
UNUSED_ATTR uint16_t* p_end_array) {}
void bta_pan_ci_set_mfilters(UNUSED_ATTR uint16_t handle,
UNUSED_ATTR uint16_t num_mcast_filters,
UNUSED_ATTR uint8_t* p_start_array,
UNUSED_ATTR uint8_t* p_end_array) {}
#endif /* BTA_PAN_API */