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OVMS3-idf/components/bt/host/bluedroid/stack/btm/btm_inq.c
Hrishikesh Dhayagude 21165edf41 Bluetooth component refactoring
2019-06-30 16:39:00 +08:00

2835 lines
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/******************************************************************************
*
* Copyright (C) 1999-2014 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 file contains functions that handle inquiries. These include
* setting discoverable mode, controlling the mode of the Baseband, and
* maintaining a small database of inquiry responses, with API for people
* to browse it.
*
******************************************************************************/
#include <string.h>
#include <stdio.h>
#include <stddef.h>
#include "osi/alarm.h"
#include "stack/bt_types.h"
#include "device/controller.h"
#include "stack/hcimsgs.h"
#include "stack/btu.h"
#include "stack/btm_api.h"
#include "btm_int.h"
#include "stack/hcidefs.h"
#if (defined(SDP_INCLUDED) && SDP_INCLUDED == TRUE)
#include "stack/sdpdefs.h"
#endif
#define BTM_INQ_REPLY_TIMEOUT 3 /* 3 second timeout waiting for responses */
/* TRUE to enable DEBUG traces for btm_inq */
#ifndef BTM_INQ_DEBUG
#define BTM_INQ_DEBUG FALSE
#endif
/********************************************************************************/
/* L O C A L D A T A D E F I N I T I O N S */
/********************************************************************************/
static const LAP general_inq_lap = {0x9e, 0x8b, 0x33};
static const LAP limited_inq_lap = {0x9e, 0x8b, 0x00};
#if (defined(SDP_INCLUDED) && SDP_INCLUDED == TRUE)
static const UINT16 BTM_EIR_UUID_LKUP_TBL[BTM_EIR_MAX_SERVICES] = {
UUID_SERVCLASS_SERVICE_DISCOVERY_SERVER,
/* UUID_SERVCLASS_BROWSE_GROUP_DESCRIPTOR, */
/* UUID_SERVCLASS_PUBLIC_BROWSE_GROUP, */
UUID_SERVCLASS_SERIAL_PORT,
UUID_SERVCLASS_LAN_ACCESS_USING_PPP,
UUID_SERVCLASS_DIALUP_NETWORKING,
UUID_SERVCLASS_IRMC_SYNC,
UUID_SERVCLASS_OBEX_OBJECT_PUSH,
UUID_SERVCLASS_OBEX_FILE_TRANSFER,
UUID_SERVCLASS_IRMC_SYNC_COMMAND,
UUID_SERVCLASS_HEADSET,
UUID_SERVCLASS_CORDLESS_TELEPHONY,
UUID_SERVCLASS_AUDIO_SOURCE,
UUID_SERVCLASS_AUDIO_SINK,
UUID_SERVCLASS_AV_REM_CTRL_TARGET,
/* UUID_SERVCLASS_ADV_AUDIO_DISTRIBUTION, */
UUID_SERVCLASS_AV_REMOTE_CONTROL,
/* UUID_SERVCLASS_VIDEO_CONFERENCING, */
UUID_SERVCLASS_INTERCOM,
UUID_SERVCLASS_FAX,
UUID_SERVCLASS_HEADSET_AUDIO_GATEWAY,
/* UUID_SERVCLASS_WAP, */
/* UUID_SERVCLASS_WAP_CLIENT, */
UUID_SERVCLASS_PANU,
UUID_SERVCLASS_NAP,
UUID_SERVCLASS_GN,
UUID_SERVCLASS_DIRECT_PRINTING,
/* UUID_SERVCLASS_REFERENCE_PRINTING, */
UUID_SERVCLASS_IMAGING,
UUID_SERVCLASS_IMAGING_RESPONDER,
UUID_SERVCLASS_IMAGING_AUTO_ARCHIVE,
UUID_SERVCLASS_IMAGING_REF_OBJECTS,
UUID_SERVCLASS_HF_HANDSFREE,
UUID_SERVCLASS_AG_HANDSFREE,
UUID_SERVCLASS_DIR_PRT_REF_OBJ_SERVICE,
/* UUID_SERVCLASS_REFLECTED_UI, */
UUID_SERVCLASS_BASIC_PRINTING,
UUID_SERVCLASS_PRINTING_STATUS,
UUID_SERVCLASS_HUMAN_INTERFACE,
UUID_SERVCLASS_CABLE_REPLACEMENT,
UUID_SERVCLASS_HCRP_PRINT,
UUID_SERVCLASS_HCRP_SCAN,
/* UUID_SERVCLASS_COMMON_ISDN_ACCESS, */
/* UUID_SERVCLASS_VIDEO_CONFERENCING_GW, */
/* UUID_SERVCLASS_UDI_MT, */
/* UUID_SERVCLASS_UDI_TA, */
/* UUID_SERVCLASS_VCP, */
UUID_SERVCLASS_SAP,
UUID_SERVCLASS_PBAP_PCE,
UUID_SERVCLASS_PBAP_PSE,
UUID_SERVCLASS_PHONE_ACCESS,
UUID_SERVCLASS_HEADSET_HS,
UUID_SERVCLASS_PNP_INFORMATION,
/* UUID_SERVCLASS_GENERIC_NETWORKING, */
/* UUID_SERVCLASS_GENERIC_FILETRANSFER, */
/* UUID_SERVCLASS_GENERIC_AUDIO, */
/* UUID_SERVCLASS_GENERIC_TELEPHONY, */
/* UUID_SERVCLASS_UPNP_SERVICE, */
/* UUID_SERVCLASS_UPNP_IP_SERVICE, */
/* UUID_SERVCLASS_ESDP_UPNP_IP_PAN, */
/* UUID_SERVCLASS_ESDP_UPNP_IP_LAP, */
/* UUID_SERVCLASS_ESDP_UPNP_IP_L2CAP, */
UUID_SERVCLASS_VIDEO_SOURCE,
UUID_SERVCLASS_VIDEO_SINK,
/* UUID_SERVCLASS_VIDEO_DISTRIBUTION */
UUID_SERVCLASS_MESSAGE_ACCESS,
UUID_SERVCLASS_MESSAGE_NOTIFICATION,
UUID_SERVCLASS_HDP_SOURCE,
UUID_SERVCLASS_HDP_SINK
};
#else
static const UINT16 BTM_EIR_UUID_LKUP_TBL[BTM_EIR_MAX_SERVICES];
#endif
/********************************************************************************/
/* L O C A L F U N C T I O N P R O T O T Y P E S */
/********************************************************************************/
static void btm_initiate_inquiry (tBTM_INQUIRY_VAR_ST *p_inq);
static tBTM_STATUS btm_set_inq_event_filter (UINT8 filter_cond_type, tBTM_INQ_FILT_COND *p_filt_cond);
static void btm_clr_inq_result_flt (void);
static UINT8 btm_convert_uuid_to_eir_service( UINT16 uuid16 );
static void btm_set_eir_uuid( UINT8 *p_eir, tBTM_INQ_RESULTS *p_results );
static UINT8 *btm_eir_get_uuid_list( UINT8 *p_eir, UINT8 uuid_size,
UINT8 *p_num_uuid, UINT8 *p_uuid_list_type );
static UINT16 btm_convert_uuid_to_uuid16( UINT8 *p_uuid, UINT8 uuid_size );
/*******************************************************************************
**
** Function BTM_SetDiscoverability
**
** Description This function is called to set the device into or out of
** discoverable mode. Discoverable mode means inquiry
** scans are enabled. If a value of '0' is entered for window or
** interval, the default values are used.
**
** Returns BTM_SUCCESS if successful
** BTM_BUSY if a setting of the filter is already in progress
** BTM_NO_RESOURCES if couldn't get a memory pool buffer
** BTM_ILLEGAL_VALUE if a bad parameter was detected
** BTM_WRONG_MODE if the device is not up.
**
*******************************************************************************/
tBTM_STATUS BTM_SetDiscoverability (UINT16 inq_mode, UINT16 window, UINT16 interval)
{
UINT8 scan_mode = 0;
UINT16 service_class;
UINT8 *p_cod;
UINT8 major, minor;
DEV_CLASS cod;
LAP temp_lap[2];
BOOLEAN is_limited;
BOOLEAN cod_limited;
BTM_TRACE_API ("BTM_SetDiscoverability\n");
/*** Check mode parameter ***/
if (inq_mode > BTM_MAX_DISCOVERABLE) {
return (BTM_ILLEGAL_VALUE);
}
/* Make sure the controller is active */
if (!controller_get_interface()->get_is_ready()) {
return (BTM_DEV_RESET);
}
/* If the window and/or interval is '0', set to default values */
if (!window) {
window = BTM_DEFAULT_DISC_WINDOW;
}
if (!interval) {
interval = BTM_DEFAULT_DISC_INTERVAL;
}
BTM_TRACE_API ("BTM_SetDiscoverability: mode %d [NonDisc-0, Lim-1, Gen-2], window 0x%04x, interval 0x%04x\n",
inq_mode, window, interval);
/*** Check for valid window and interval parameters ***/
/*** Only check window and duration if mode is connectable ***/
if (inq_mode != BTM_NON_DISCOVERABLE) {
/* window must be less than or equal to interval */
if (window < HCI_MIN_INQUIRYSCAN_WINDOW ||
window > HCI_MAX_INQUIRYSCAN_WINDOW ||
interval < HCI_MIN_INQUIRYSCAN_INTERVAL ||
interval > HCI_MAX_INQUIRYSCAN_INTERVAL ||
window > interval) {
return (BTM_ILLEGAL_VALUE);
}
}
/* Set the IAC if needed */
if (inq_mode != BTM_NON_DISCOVERABLE) {
if (inq_mode & BTM_LIMITED_DISCOVERABLE) {
/* Use the GIAC and LIAC codes for limited discoverable mode */
memcpy (temp_lap[0], limited_inq_lap, LAP_LEN);
memcpy (temp_lap[1], general_inq_lap, LAP_LEN);
if (!btsnd_hcic_write_cur_iac_lap (2, (LAP * const) temp_lap)) {
return (BTM_NO_RESOURCES); /* Cannot continue */
}
} else {
if (!btsnd_hcic_write_cur_iac_lap (1, (LAP * const) &general_inq_lap)) {
return (BTM_NO_RESOURCES); /* Cannot continue */
}
}
scan_mode |= HCI_INQUIRY_SCAN_ENABLED;
}
/* Send down the inquiry scan window and period if changed */
if ((window != btm_cb.btm_inq_vars.inq_scan_window) ||
(interval != btm_cb.btm_inq_vars.inq_scan_period)) {
if (btsnd_hcic_write_inqscan_cfg (interval, window)) {
btm_cb.btm_inq_vars.inq_scan_window = window;
btm_cb.btm_inq_vars.inq_scan_period = interval;
} else {
return (BTM_NO_RESOURCES);
}
}
if (btm_cb.btm_inq_vars.connectable_mode & BTM_CONNECTABLE_MASK) {
scan_mode |= HCI_PAGE_SCAN_ENABLED;
}
if (btsnd_hcic_write_scan_enable (scan_mode)) {
btm_cb.btm_inq_vars.discoverable_mode &= (~BTM_DISCOVERABLE_MASK);
btm_cb.btm_inq_vars.discoverable_mode |= inq_mode;
} else {
return (BTM_NO_RESOURCES);
}
/* Change the service class bit if mode has changed */
p_cod = BTM_ReadDeviceClass();
BTM_COD_SERVICE_CLASS(service_class, p_cod);
is_limited = (inq_mode & BTM_LIMITED_DISCOVERABLE) ? TRUE : FALSE;
cod_limited = (service_class & BTM_COD_SERVICE_LMTD_DISCOVER) ? TRUE : FALSE;
if (is_limited ^ cod_limited) {
BTM_COD_MINOR_CLASS(minor, p_cod );
BTM_COD_MAJOR_CLASS(major, p_cod );
if (is_limited) {
service_class |= BTM_COD_SERVICE_LMTD_DISCOVER;
} else {
service_class &= ~BTM_COD_SERVICE_LMTD_DISCOVER;
}
FIELDS_TO_COD(cod, minor, major, service_class);
(void) BTM_SetDeviceClass (cod);
}
return (BTM_SUCCESS);
}
/*******************************************************************************
**
** Function BTM_SetInquiryScanType
**
** Description This function is called to set the iquiry scan-type to
** standard or interlaced.
**
** Returns BTM_SUCCESS if successful
** BTM_MODE_UNSUPPORTED if not a 1.2 device
** BTM_WRONG_MODE if the device is not up.
**
*******************************************************************************/
tBTM_STATUS BTM_SetInquiryScanType (UINT16 scan_type)
{
BTM_TRACE_API ("BTM_SetInquiryScanType\n");
if (scan_type != BTM_SCAN_TYPE_STANDARD && scan_type != BTM_SCAN_TYPE_INTERLACED) {
return (BTM_ILLEGAL_VALUE);
}
/* whatever app wants if device is not 1.2 scan type should be STANDARD */
if (!controller_get_interface()->supports_interlaced_inquiry_scan()) {
return (BTM_MODE_UNSUPPORTED);
}
/* Check for scan type if configuration has been changed */
if (scan_type != btm_cb.btm_inq_vars.inq_scan_type) {
if (BTM_IsDeviceUp()) {
if (btsnd_hcic_write_inqscan_type ((UINT8)scan_type)) {
btm_cb.btm_inq_vars.inq_scan_type = scan_type;
} else {
return (BTM_NO_RESOURCES);
}
} else {
return (BTM_WRONG_MODE);
}
}
return (BTM_SUCCESS);
}
/*******************************************************************************
**
** Function BTM_SetPageScanType
**
** Description This function is called to set the page scan-type to
** standard or interlaced.
**
** Returns BTM_SUCCESS if successful
** BTM_MODE_UNSUPPORTED if not a 1.2 device
** BTM_WRONG_MODE if the device is not up.
**
*******************************************************************************/
tBTM_STATUS BTM_SetPageScanType (UINT16 scan_type)
{
BTM_TRACE_API ("BTM_SetPageScanType\n");
if (scan_type != BTM_SCAN_TYPE_STANDARD && scan_type != BTM_SCAN_TYPE_INTERLACED) {
return (BTM_ILLEGAL_VALUE);
}
/* whatever app wants if device is not 1.2 scan type should be STANDARD */
if (!controller_get_interface()->supports_interlaced_inquiry_scan()) {
return (BTM_MODE_UNSUPPORTED);
}
/* Check for scan type if configuration has been changed */
if (scan_type != btm_cb.btm_inq_vars.page_scan_type) {
if (BTM_IsDeviceUp()) {
if (btsnd_hcic_write_pagescan_type ((UINT8)scan_type)) {
btm_cb.btm_inq_vars.page_scan_type = scan_type;
} else {
return (BTM_NO_RESOURCES);
}
} else {
return (BTM_WRONG_MODE);
}
}
return (BTM_SUCCESS);
}
/*******************************************************************************
**
** Function BTM_SetInquiryMode
**
** Description This function is called to set standard or with RSSI
** mode of the inquiry for local device.
**
** Output Params: mode - standard, with RSSI, extended
**
** Returns BTM_SUCCESS if successful
** BTM_NO_RESOURCES if couldn't get a memory pool buffer
** BTM_ILLEGAL_VALUE if a bad parameter was detected
** BTM_WRONG_MODE if the device is not up.
**
*******************************************************************************/
tBTM_STATUS BTM_SetInquiryMode (UINT8 mode)
{
const controller_t *controller = controller_get_interface();
BTM_TRACE_API ("BTM_SetInquiryMode\n");
if (mode == BTM_INQ_RESULT_STANDARD) {
/* mandatory mode */
} else if (mode == BTM_INQ_RESULT_WITH_RSSI) {
if (!controller->supports_rssi_with_inquiry_results()) {
return (BTM_MODE_UNSUPPORTED);
}
} else if (mode == BTM_INQ_RESULT_EXTENDED) {
if (!controller->supports_extended_inquiry_response()) {
return (BTM_MODE_UNSUPPORTED);
}
} else {
return (BTM_ILLEGAL_VALUE);
}
if (!BTM_IsDeviceUp()) {
return (BTM_WRONG_MODE);
}
if (!btsnd_hcic_write_inquiry_mode (mode)) {
return (BTM_NO_RESOURCES);
}
return (BTM_SUCCESS);
}
/*******************************************************************************
**
** Function BTM_ReadDiscoverability
**
** Description This function is called to read the current discoverability
** mode of the device.
**
** Output Params: p_window - current inquiry scan duration
** p_interval - current inquiry scan interval
**
** Returns BTM_NON_DISCOVERABLE, BTM_LIMITED_DISCOVERABLE, or
** BTM_GENERAL_DISCOVERABLE
**
*******************************************************************************/
UINT16 BTM_ReadDiscoverability (UINT16 *p_window, UINT16 *p_interval)
{
BTM_TRACE_API ("BTM_ReadDiscoverability\n");
if (p_window) {
*p_window = btm_cb.btm_inq_vars.inq_scan_window;
}
if (p_interval) {
*p_interval = btm_cb.btm_inq_vars.inq_scan_period;
}
return (btm_cb.btm_inq_vars.discoverable_mode);
}
/*******************************************************************************
**
** Function BTM_SetPeriodicInquiryMode
**
** Description This function is called to set the device periodic inquiry mode.
** If the duration is zero, the periodic inquiry mode is cancelled.
**
** Note: We currently do not allow concurrent inquiry and periodic inquiry.
**
** Parameters: p_inqparms - pointer to the inquiry information
** mode - GENERAL or LIMITED inquiry
** duration - length in 1.28 sec intervals (If '0', the inquiry is CANCELLED)
** max_resps - maximum amount of devices to search for before ending the inquiry
** filter_cond_type - BTM_CLR_INQUIRY_FILTER, BTM_FILTER_COND_DEVICE_CLASS, or
** BTM_FILTER_COND_BD_ADDR
** filter_cond - value for the filter (based on filter_cond_type)
**
** max_delay - maximum amount of time between successive inquiries
** min_delay - minimum amount of time between successive inquiries
** p_results_cb - callback returning pointer to results (tBTM_INQ_RESULTS)
**
** Returns BTM_CMD_STARTED if successfully started
** BTM_ILLEGAL_VALUE if a bad parameter is detected
** BTM_NO_RESOURCES if could not allocate a message buffer
** BTM_SUCCESS - if cancelling the periodic inquiry
** BTM_BUSY - if an inquiry is already active
** BTM_WRONG_MODE if the device is not up.
**
*******************************************************************************/
tBTM_STATUS BTM_SetPeriodicInquiryMode (tBTM_INQ_PARMS *p_inqparms, UINT16 max_delay,
UINT16 min_delay, tBTM_INQ_RESULTS_CB *p_results_cb)
{
tBTM_STATUS status;
tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars;
BTM_TRACE_API ("BTM_SetPeriodicInquiryMode: mode: %d, dur: %d, rsps: %d, flt: %d, min: %d, max: %d\n",
p_inqparms->mode, p_inqparms->duration, p_inqparms->max_resps,
p_inqparms->filter_cond_type, min_delay, max_delay);
/*** Make sure the device is ready ***/
if (!BTM_IsDeviceUp()) {
return (BTM_WRONG_MODE);
}
/* Only one active inquiry is allowed in this implementation.
Also do not allow an inquiry if the inquiry filter is being updated */
if (p_inq->inq_active || p_inq->inqfilt_active) {
return (BTM_BUSY);
}
/* If illegal parameters return FALSE */
if (p_inqparms->mode != BTM_GENERAL_INQUIRY &&
p_inqparms->mode != BTM_LIMITED_INQUIRY) {
return (BTM_ILLEGAL_VALUE);
}
/* Verify the parameters for this command */
if (p_inqparms->duration < BTM_MIN_INQUIRY_LEN ||
p_inqparms->duration > BTM_MAX_INQUIRY_LENGTH ||
min_delay <= p_inqparms->duration ||
min_delay < BTM_PER_INQ_MIN_MIN_PERIOD ||
min_delay > BTM_PER_INQ_MAX_MIN_PERIOD ||
max_delay <= min_delay ||
max_delay < BTM_PER_INQ_MIN_MAX_PERIOD)
/* max_delay > BTM_PER_INQ_MAX_MAX_PERIOD)*/
/* BTM_PER_INQ_MAX_MAX_PERIOD set to 1's in all bits. Condition resulting in false always*/
{
return (BTM_ILLEGAL_VALUE);
}
/* Save the inquiry parameters to be used upon the completion of setting/clearing the inquiry filter */
p_inq->inqparms = *p_inqparms;
p_inq->per_min_delay = min_delay;
p_inq->per_max_delay = max_delay;
p_inq->inq_cmpl_info.num_resp = 0; /* Clear the results counter */
p_inq->p_inq_results_cb = p_results_cb;
p_inq->inq_active = (UINT8)((p_inqparms->mode == BTM_LIMITED_INQUIRY) ?
(BTM_LIMITED_INQUIRY_ACTIVE | BTM_PERIODIC_INQUIRY_ACTIVE) :
(BTM_GENERAL_INQUIRY_ACTIVE | BTM_PERIODIC_INQUIRY_ACTIVE));
/* If a filter is specified, then save it for later and clear the current filter.
The setting of the filter is done upon completion of clearing of the previous
filter.
*/
if (p_inqparms->filter_cond_type != BTM_CLR_INQUIRY_FILTER) {
p_inq->state = BTM_INQ_CLR_FILT_STATE;
p_inqparms->filter_cond_type = BTM_CLR_INQUIRY_FILTER;
} else { /* The filter is not being used so simply clear it; the inquiry can start after this operation */
p_inq->state = BTM_INQ_SET_FILT_STATE;
}
/* Before beginning the inquiry the current filter must be cleared, so initiate the command */
if ((status = btm_set_inq_event_filter (p_inqparms->filter_cond_type, &p_inqparms->filter_cond)) != BTM_CMD_STARTED) {
/* If set filter command is not succesful reset the state */
p_inq->p_inq_results_cb = NULL;
p_inq->state = BTM_INQ_INACTIVE_STATE;
}
return (status);
}
/*******************************************************************************
**
** Function BTM_CancelPeriodicInquiry
**
** Description This function cancels a periodic inquiry
**
** Returns
** BTM_NO_RESOURCES if could not allocate a message buffer
** BTM_SUCCESS - if cancelling the periodic inquiry
** BTM_WRONG_MODE if the device is not up.
**
*******************************************************************************/
tBTM_STATUS BTM_CancelPeriodicInquiry(void)
{
tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars;
tBTM_STATUS status = BTM_SUCCESS;
BTM_TRACE_API ("BTM_CancelPeriodicInquiry called\n");
/*** Make sure the device is ready ***/
if (!BTM_IsDeviceUp()) {
return (BTM_WRONG_MODE);
}
/* Only cancel if one is active */
if (btm_cb.btm_inq_vars.inq_active & BTM_PERIODIC_INQUIRY_ACTIVE) {
btm_cb.btm_inq_vars.inq_active = BTM_INQUIRY_INACTIVE;
btm_cb.btm_inq_vars.p_inq_results_cb = (tBTM_INQ_RESULTS_CB *) NULL;
if (!btsnd_hcic_exit_per_inq ()) {
status = BTM_NO_RESOURCES;
}
/* If the event filter is in progress, mark it so that the processing of the return
event will be ignored */
if (p_inq->inqfilt_active) {
p_inq->pending_filt_complete_event++;
}
p_inq->inqfilt_active = FALSE;
p_inq->inq_counter++;
}
return (status);
}
/*******************************************************************************
**
** Function BTM_SetConnectability
**
** Description This function is called to set the device into or out of
** connectable mode. Discoverable mode means page scans enabled.
**
** Returns BTM_SUCCESS if successful
** BTM_ILLEGAL_VALUE if a bad parameter is detected
** BTM_NO_RESOURCES if could not allocate a message buffer
** BTM_WRONG_MODE if the device is not up.
**
*******************************************************************************/
tBTM_STATUS BTM_SetConnectability (UINT16 page_mode, UINT16 window, UINT16 interval)
{
UINT8 scan_mode = 0;
tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars;
BTM_TRACE_API ("BTM_SetConnectability\n");
/*** Check mode parameter ***/
if (page_mode != BTM_NON_CONNECTABLE && page_mode != BTM_CONNECTABLE) {
return (BTM_ILLEGAL_VALUE);
}
/* Make sure the controller is active */
if (!controller_get_interface()->get_is_ready()) {
return (BTM_DEV_RESET);
}
/* If the window and/or interval is '0', set to default values */
if (!window) {
window = BTM_DEFAULT_CONN_WINDOW;
}
if (!interval) {
interval = BTM_DEFAULT_CONN_INTERVAL;
}
BTM_TRACE_API ("BTM_SetConnectability: mode %d [NonConn-0, Conn-1], window 0x%04x, interval 0x%04x\n",
page_mode, window, interval);
/*** Check for valid window and interval parameters ***/
/*** Only check window and duration if mode is connectable ***/
if (page_mode == BTM_CONNECTABLE) {
/* window must be less than or equal to interval */
if (window < HCI_MIN_PAGESCAN_WINDOW ||
window > HCI_MAX_PAGESCAN_WINDOW ||
interval < HCI_MIN_PAGESCAN_INTERVAL ||
interval > HCI_MAX_PAGESCAN_INTERVAL ||
window > interval) {
return (BTM_ILLEGAL_VALUE);
}
scan_mode |= HCI_PAGE_SCAN_ENABLED;
}
if ((window != p_inq->page_scan_window) ||
(interval != p_inq->page_scan_period)) {
p_inq->page_scan_window = window;
p_inq->page_scan_period = interval;
if (!btsnd_hcic_write_pagescan_cfg (interval, window)) {
return (BTM_NO_RESOURCES);
}
}
/* Keep the inquiry scan as previouosly set */
if (p_inq->discoverable_mode & BTM_DISCOVERABLE_MASK) {
scan_mode |= HCI_INQUIRY_SCAN_ENABLED;
}
if (btsnd_hcic_write_scan_enable (scan_mode)) {
p_inq->connectable_mode &= (~BTM_CONNECTABLE_MASK);
p_inq->connectable_mode |= page_mode;
return (BTM_SUCCESS);
}
return (BTM_NO_RESOURCES);
}
/*******************************************************************************
**
** Function BTM_ReadConnectability
**
** Description This function is called to read the current discoverability
** mode of the device.
** Output Params p_window - current page scan duration
** p_interval - current time between page scans
**
** Returns BTM_NON_CONNECTABLE or BTM_CONNECTABLE
**
*******************************************************************************/
UINT16 BTM_ReadConnectability (UINT16 *p_window, UINT16 *p_interval)
{
BTM_TRACE_API ("BTM_ReadConnectability\n");
if (p_window) {
*p_window = btm_cb.btm_inq_vars.page_scan_window;
}
if (p_interval) {
*p_interval = btm_cb.btm_inq_vars.page_scan_period;
}
return (btm_cb.btm_inq_vars.connectable_mode);
}
/*******************************************************************************
**
** Function BTM_IsInquiryActive
**
** Description This function returns a bit mask of the current inquiry state
**
** Returns BTM_INQUIRY_INACTIVE if inactive (0)
** BTM_LIMITED_INQUIRY_ACTIVE if a limted inquiry is active
** BTM_GENERAL_INQUIRY_ACTIVE if a general inquiry is active
** BTM_PERIODIC_INQUIRY_ACTIVE if a periodic inquiry is active
**
*******************************************************************************/
UINT16 BTM_IsInquiryActive (void)
{
BTM_TRACE_API ("BTM_IsInquiryActive\n");
return (btm_cb.btm_inq_vars.inq_active);
}
/*******************************************************************************
**
** Function BTM_CancelInquiry
**
** Description This function cancels an inquiry if active
**
** Returns BTM_SUCCESS if successful
** BTM_NO_RESOURCES if could not allocate a message buffer
** BTM_WRONG_MODE if the device is not up.
**
*******************************************************************************/
tBTM_STATUS BTM_CancelInquiry(void)
{
tBTM_STATUS status = BTM_SUCCESS;
tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars;
#if (defined(BTA_HOST_INTERLEAVE_SEARCH) && BTA_HOST_INTERLEAVE_SEARCH == TRUE)
UINT8 active_mode = p_inq->inq_active;
#endif
BTM_TRACE_API ("BTM_CancelInquiry called\n");
/*** Make sure the device is ready ***/
if (!BTM_IsDeviceUp()) {
return (BTM_WRONG_MODE);
}
/* Only cancel if not in periodic mode, otherwise the caller should call BTM_CancelPeriodicMode */
if ((p_inq->inq_active & BTM_INQUIRY_ACTIVE_MASK) != 0 &&
(!(p_inq->inq_active & BTM_PERIODIC_INQUIRY_ACTIVE))) {
p_inq->inq_active = BTM_INQUIRY_INACTIVE;
p_inq->state = BTM_INQ_INACTIVE_STATE;
p_inq->p_inq_results_cb = (tBTM_INQ_RESULTS_CB *) NULL; /* Do not notify caller anymore */
p_inq->p_inq_cmpl_cb = (tBTM_CMPL_CB *) NULL; /* Do not notify caller anymore */
/* If the event filter is in progress, mark it so that the processing of the return
event will be ignored */
if (p_inq->inqfilt_active) {
p_inq->inqfilt_active = FALSE;
p_inq->pending_filt_complete_event++;
}
/* Initiate the cancel inquiry */
else {
if (((p_inq->inqparms.mode & BTM_BR_INQUIRY_MASK) != 0)
#if (defined(BTA_HOST_INTERLEAVE_SEARCH) && BTA_HOST_INTERLEAVE_SEARCH == TRUE)
&& (active_mode & BTM_BR_INQUIRY_MASK)
#endif
) {
if (!btsnd_hcic_inq_cancel()) {
status = BTM_NO_RESOURCES;
}
}
#if BLE_INCLUDED == TRUE
if (((p_inq->inqparms.mode & BTM_BLE_INQUIRY_MASK) != 0)
#if (defined(BTA_HOST_INTERLEAVE_SEARCH) && BTA_HOST_INTERLEAVE_SEARCH == TRUE)
&& (active_mode & BTM_BLE_INQ_ACTIVE_MASK)
#endif
) {
btm_ble_stop_inquiry();
}
#endif
}
/* Do not send the BUSY_LEVEL event yet. Wait for the cancel_complete event
* and then send the BUSY_LEVEL event
* btm_acl_update_busy_level (BTM_BLI_INQ_DONE_EVT);
*/
p_inq->inq_counter++;
btm_clr_inq_result_flt();
}
return (status);
}
/*******************************************************************************
**
** Function BTM_StartInquiry
**
** Description This function is called to start an inquiry.
**
** Parameters: p_inqparms - pointer to the inquiry information
** mode - GENERAL or LIMITED inquiry, BR/LE bit mask seperately
** duration - length in 1.28 sec intervals (If '0', the inquiry is CANCELLED)
** max_resps - maximum amount of devices to search for before ending the inquiry
** filter_cond_type - BTM_CLR_INQUIRY_FILTER, BTM_FILTER_COND_DEVICE_CLASS, or
** BTM_FILTER_COND_BD_ADDR
** filter_cond - value for the filter (based on filter_cond_type)
**
** p_results_cb - Pointer to the callback routine which gets called
** upon receipt of an inquiry result. If this field is
** NULL, the application is not notified.
**
** p_cmpl_cb - Pointer to the callback routine which gets called
** upon completion. If this field is NULL, the
** application is not notified when completed.
** Returns tBTM_STATUS
** BTM_CMD_STARTED if successfully initiated
** BTM_BUSY if already in progress
** BTM_ILLEGAL_VALUE if parameter(s) are out of range
** BTM_NO_RESOURCES if could not allocate resources to start the command
** BTM_WRONG_MODE if the device is not up.
**
*******************************************************************************/
tBTM_STATUS BTM_StartInquiry (tBTM_INQ_PARMS *p_inqparms, tBTM_INQ_RESULTS_CB *p_results_cb,
tBTM_CMPL_CB *p_cmpl_cb)
{
tBTM_STATUS status = BTM_CMD_STARTED;
tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars;
BTM_TRACE_API ("BTM_StartInquiry: mode: %d, dur: %d, rsps: %d, flt: %d\n",
p_inqparms->mode, p_inqparms->duration, p_inqparms->max_resps,
p_inqparms->filter_cond_type);
/* Only one active inquiry is allowed in this implementation.
Also do not allow an inquiry if the inquiry filter is being updated */
if (p_inq->inq_active || p_inq->inqfilt_active) {
#if (defined BLE_INCLUDED && BLE_INCLUDED == TRUE)
/*check if LE observe is already running*/
if (p_inq->scan_type == INQ_LE_OBSERVE && p_inq->p_inq_ble_results_cb != NULL) {
BTM_TRACE_API("BTM_StartInquiry: LE observe in progress");
p_inq->scan_type = INQ_GENERAL;
p_inq->inq_active = BTM_INQUIRY_INACTIVE;
btm_cb.ble_ctr_cb.inq_var.scan_type = BTM_BLE_SCAN_MODE_NONE;
btsnd_hcic_ble_set_scan_enable (BTM_BLE_SCAN_DISABLE, BTM_BLE_DUPLICATE_ENABLE);
} else
#endif
{
return (BTM_BUSY);
BTM_TRACE_API("BTM_StartInquiry: return BUSY\n");
}
} else {
p_inq->scan_type = INQ_GENERAL;
}
/*** Make sure the device is ready ***/
if (!BTM_IsDeviceUp()) {
return (BTM_WRONG_MODE);
}
if ((p_inqparms->mode & BTM_BR_INQUIRY_MASK) != BTM_GENERAL_INQUIRY &&
(p_inqparms->mode & BTM_BR_INQUIRY_MASK) != BTM_LIMITED_INQUIRY
#if (BLE_INCLUDED == TRUE)
&& (p_inqparms->mode & BTM_BLE_INQUIRY_MASK) != BTM_BLE_GENERAL_INQUIRY
&& (p_inqparms->mode & BTM_BLE_INQUIRY_MASK) != BTM_BLE_LIMITED_INQUIRY
#endif
) {
return (BTM_ILLEGAL_VALUE);
}
#if (defined(BTA_HOST_INTERLEAVE_SEARCH) && BTA_HOST_INTERLEAVE_SEARCH == TRUE)
if (p_inq->next_state == BTM_FINISH) {
return BTM_ILLEGAL_VALUE;
}
#endif
/* Save the inquiry parameters to be used upon the completion of setting/clearing the inquiry filter */
p_inq->inqparms = *p_inqparms;
/* Initialize the inquiry variables */
p_inq->state = BTM_INQ_ACTIVE_STATE;
p_inq->p_inq_cmpl_cb = p_cmpl_cb;
p_inq->p_inq_results_cb = p_results_cb;
p_inq->inq_cmpl_info.num_resp = 0; /* Clear the results counter */
p_inq->inq_active = p_inqparms->mode;
BTM_TRACE_DEBUG("BTM_StartInquiry: p_inq->inq_active = 0x%02x\n", p_inq->inq_active);
/* interleave scan minimal conditions */
#if (BLE_INCLUDED==TRUE && (defined(BTA_HOST_INTERLEAVE_SEARCH) && BTA_HOST_INTERLEAVE_SEARCH == TRUE))
/* check if both modes are present */
if ((p_inqparms->mode & BTM_BLE_INQUIRY_MASK) && (p_inqparms->mode & BTM_BR_INQUIRY_MASK)) {
BTM_TRACE_API("BTM:Interleave Inquiry Mode Set\n");
p_inqparms->duration = p_inqparms->intl_duration[p_inq->next_state];
p_inq->inqparms.duration = p_inqparms->duration;
} else {
BTM_TRACE_API("BTM:Single Mode: No interleaving, Mode:0x%02x\n", p_inqparms->mode);
p_inq->next_state = BTM_NO_INTERLEAVING;
}
#endif
/* start LE inquiry here if requested */
#if BLE_INCLUDED == TRUE
if ((p_inqparms->mode & BTM_BLE_INQUIRY_MASK)
#if (defined(BTA_HOST_INTERLEAVE_SEARCH) && BTA_HOST_INTERLEAVE_SEARCH == TRUE)
&& (p_inq->next_state == BTM_BLE_ONE || p_inq->next_state == BTM_BLE_TWO ||
p_inq->next_state == BTM_NO_INTERLEAVING)
#endif
)
{
#if (defined(BTA_HOST_INTERLEAVE_SEARCH) && BTA_HOST_INTERLEAVE_SEARCH == TRUE)
p_inq->inq_active = (p_inqparms->mode & BTM_BLE_INQUIRY_MASK);
BTM_TRACE_API("BTM:Starting LE Scan with duration %d and activeMode:0x%02x\n",
p_inqparms->duration, (p_inqparms->mode & BTM_BLE_INQUIRY_MASK));
#endif
if (!controller_get_interface()->supports_ble()) {
p_inq->inqparms.mode &= ~ BTM_BLE_INQUIRY_MASK;
status = BTM_ILLEGAL_VALUE;
}
/* BLE for now does not support filter condition for inquiry */
else if ((status = btm_ble_start_inquiry((UINT8)(p_inqparms->mode & BTM_BLE_INQUIRY_MASK),
p_inqparms->duration)) != BTM_CMD_STARTED) {
BTM_TRACE_ERROR("Err Starting LE Inquiry.\n");
p_inq->inqparms.mode &= ~ BTM_BLE_INQUIRY_MASK;
}
#if (!defined(BTA_HOST_INTERLEAVE_SEARCH) || BTA_HOST_INTERLEAVE_SEARCH == FALSE)
p_inqparms->mode &= ~BTM_BLE_INQUIRY_MASK;
#endif
#if (defined(BTA_HOST_INTERLEAVE_SEARCH) && BTA_HOST_INTERLEAVE_SEARCH == TRUE)
if (p_inq->next_state == BTM_NO_INTERLEAVING) {
p_inq->next_state = BTM_FINISH;
} else {
BTM_TRACE_API("BTM:Interleaving: started LE scan, Advancing to next state: %d\n",
p_inq->next_state + 1);
p_inq->next_state += 1;
}
/* reset next_state if status <> BTM_Started */
if (status != BTM_CMD_STARTED) {
p_inq->next_state = BTM_BR_ONE;
}
/* if interleave scan..return here */
return status;
#endif
BTM_TRACE_DEBUG("BTM_StartInquiry: mode = %02x\n", p_inqparms->mode);
}
#endif /* end of BLE_INCLUDED */
/* we're done with this routine if BR/EDR inquiry is not desired. */
if ((p_inqparms->mode & BTM_BR_INQUIRY_MASK) == BTM_INQUIRY_NONE) {
return status;
}
/* BR/EDR inquiry portion */
#if (defined(BTA_HOST_INTERLEAVE_SEARCH) && BTA_HOST_INTERLEAVE_SEARCH == TRUE)
if ((p_inq->next_state == BTM_BR_ONE || p_inq->next_state == BTM_BR_TWO ||
p_inq->next_state == BTM_NO_INTERLEAVING )) {
p_inq->inq_active = (p_inqparms->mode & BTM_BR_INQUIRY_MASK);
#endif
/* If a filter is specified, then save it for later and clear the current filter.
The setting of the filter is done upon completion of clearing of the previous
filter.
*/
switch (p_inqparms->filter_cond_type) {
case BTM_CLR_INQUIRY_FILTER:
p_inq->state = BTM_INQ_SET_FILT_STATE;
break;
case BTM_FILTER_COND_DEVICE_CLASS:
case BTM_FILTER_COND_BD_ADDR:
/* The filter is not being used so simply clear it;
the inquiry can start after this operation */
p_inq->state = BTM_INQ_CLR_FILT_STATE;
p_inqparms->filter_cond_type = BTM_CLR_INQUIRY_FILTER;
/* =============>>>> adding LE filtering here ????? */
break;
default:
return (BTM_ILLEGAL_VALUE);
}
/* Before beginning the inquiry the current filter must be cleared, so initiate the command */
if ((status = btm_set_inq_event_filter (p_inqparms->filter_cond_type,
&p_inqparms->filter_cond)) != BTM_CMD_STARTED) {
p_inq->state = BTM_INQ_INACTIVE_STATE;
}
#if (defined(BTA_HOST_INTERLEAVE_SEARCH) && BTA_HOST_INTERLEAVE_SEARCH == TRUE)
if (p_inq->next_state == BTM_NO_INTERLEAVING) {
p_inq->next_state = BTM_FINISH;
} else {
BTM_TRACE_API("BTM:Interleaving: Started BTM inq, Advancing to next state: %d\n",
p_inq->next_state + 1);
p_inq->next_state += 1;
}
}
if (status != BTM_CMD_STARTED) {
/* Some error beginning the scan process.
Reset the next_state parameter.. Do we need to reset the inq_active also?
*/
BTM_TRACE_API("BTM:Interleaving: Error in Starting inquiry, status: 0x%02x\n", status);
p_inq->next_state = BTM_BR_ONE;
}
#endif
return (status);
}
/*******************************************************************************
**
** Function BTM_ReadRemoteDeviceName
**
** Description This function initiates a remote device HCI command to the
** controller and calls the callback when the process has completed.
**
** Input Params: remote_bda - device address of name to retrieve
** p_cb - callback function called when BTM_CMD_STARTED
** is returned.
** A pointer to tBTM_REMOTE_DEV_NAME is passed to the
** callback.
**
** Returns
** BTM_CMD_STARTED is returned if the request was successfully sent
** to HCI.
** BTM_BUSY if already in progress
** BTM_UNKNOWN_ADDR if device address is bad
** BTM_NO_RESOURCES if could not allocate resources to start the command
** BTM_WRONG_MODE if the device is not up.
**
*******************************************************************************/
tBTM_STATUS BTM_ReadRemoteDeviceName (BD_ADDR remote_bda, tBTM_CMPL_CB *p_cb
, tBT_TRANSPORT transport)
{
tBTM_INQ_INFO *p_cur = NULL;
tINQ_DB_ENT *p_i;
BTM_TRACE_API ("BTM_ReadRemoteDeviceName: bd addr [%02x%02x%02x%02x%02x%02x]\n",
remote_bda[0], remote_bda[1], remote_bda[2],
remote_bda[3], remote_bda[4], remote_bda[5]);
/* Use the remote device's clock offset if it is in the local inquiry database */
if ((p_i = btm_inq_db_find (remote_bda)) != NULL) {
p_cur = &p_i->inq_info;
}
BTM_TRACE_API ("no device found in inquiry db\n");
#if (BLE_INCLUDED == TRUE)
if (transport == BT_TRANSPORT_LE) {
return btm_ble_read_remote_name(remote_bda, p_cur, p_cb);
} else
#endif
{
return (btm_initiate_rem_name (remote_bda, p_cur, BTM_RMT_NAME_EXT,
BTM_EXT_RMT_NAME_TIMEOUT, p_cb));
}
}
/*******************************************************************************
**
** Function BTM_CancelRemoteDeviceName
**
** Description This function initiates the cancel request for the specified
** remote device.
**
** Input Params: None
**
** Returns
** BTM_CMD_STARTED is returned if the request was successfully sent
** to HCI.
** BTM_NO_RESOURCES if could not allocate resources to start the command
** BTM_WRONG_MODE if there is not an active remote name request.
**
*******************************************************************************/
tBTM_STATUS BTM_CancelRemoteDeviceName (void)
{
tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars;
BTM_TRACE_API ("BTM_CancelRemoteDeviceName()\n");
/* Make sure there is not already one in progress */
if (p_inq->remname_active) {
#if BLE_INCLUDED == TRUE
if (BTM_UseLeLink(p_inq->remname_bda)) {
if (btm_ble_cancel_remote_name(p_inq->remname_bda)) {
return (BTM_CMD_STARTED);
} else {
return (BTM_UNKNOWN_ADDR);
}
} else
#endif
{
if (btsnd_hcic_rmt_name_req_cancel (p_inq->remname_bda)) {
return (BTM_CMD_STARTED);
} else {
return (BTM_NO_RESOURCES);
}
}
} else {
return (BTM_WRONG_MODE);
}
}
/*******************************************************************************
**
** Function BTM_InqDbRead
**
** Description This function looks through the inquiry database for a match
** based on Bluetooth Device Address. This is the application's
** interface to get the inquiry details of a specific BD address.
**
** Returns pointer to entry, or NULL if not found
**
*******************************************************************************/
tBTM_INQ_INFO *BTM_InqDbRead (BD_ADDR p_bda)
{
BTM_TRACE_API ("BTM_InqDbRead: bd addr [%02x%02x%02x%02x%02x%02x]\n",
p_bda[0], p_bda[1], p_bda[2], p_bda[3], p_bda[4], p_bda[5]);
tINQ_DB_ENT *p_ent = btm_inq_db_find(p_bda);
if (!p_ent) {
return NULL;
}
return &p_ent->inq_info;
}
/*******************************************************************************
**
** Function BTM_InqDbFirst
**
** Description This function looks through the inquiry database for the first
** used entry, and returns that. This is used in conjunction with
** BTM_InqDbNext by applications as a way to walk through the
** inquiry database.
**
** Returns pointer to first in-use entry, or NULL if DB is empty
**
*******************************************************************************/
tBTM_INQ_INFO *BTM_InqDbFirst (void)
{
UINT16 xx;
tINQ_DB_ENT *p_ent = btm_cb.btm_inq_vars.inq_db;
for (xx = 0; xx < BTM_INQ_DB_SIZE; xx++, p_ent++) {
if (p_ent->in_use) {
return (&p_ent->inq_info);
}
}
/* If here, no used entry found */
return ((tBTM_INQ_INFO *)NULL);
}
/*******************************************************************************
**
** Function BTM_InqDbNext
**
** Description This function looks through the inquiry database for the next
** used entry, and returns that. If the input parameter is NULL,
** the first entry is returned.
**
** Returns pointer to next in-use entry, or NULL if no more found.
**
*******************************************************************************/
tBTM_INQ_INFO *BTM_InqDbNext (tBTM_INQ_INFO *p_cur)
{
tINQ_DB_ENT *p_ent;
UINT16 inx;
if (p_cur) {
p_ent = (tINQ_DB_ENT *) ((UINT8 *)p_cur - offsetof (tINQ_DB_ENT, inq_info));
inx = (UINT16)((p_ent - btm_cb.btm_inq_vars.inq_db) + 1);
for (p_ent = &btm_cb.btm_inq_vars.inq_db[inx]; inx < BTM_INQ_DB_SIZE; inx++, p_ent++) {
if (p_ent->in_use) {
return (&p_ent->inq_info);
}
}
/* If here, more entries found */
return ((tBTM_INQ_INFO *)NULL);
} else {
return (BTM_InqDbFirst());
}
}
/*******************************************************************************
**
** Function BTM_ClearInqDb
**
** Description This function is called to clear out a device or all devices
** from the inquiry database.
**
** Parameter p_bda - (input) BD_ADDR -> Address of device to clear
** (NULL clears all entries)
**
** Returns BTM_BUSY if an inquiry, get remote name, or event filter
** is active, otherwise BTM_SUCCESS
**
*******************************************************************************/
tBTM_STATUS BTM_ClearInqDb (BD_ADDR p_bda)
{
tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars;
/* If an inquiry or remote name is in progress return busy */
if (p_inq->inq_active != BTM_INQUIRY_INACTIVE ||
p_inq->inqfilt_active) {
return (BTM_BUSY);
}
btm_clr_inq_db(p_bda);
return (BTM_SUCCESS);
}
/*******************************************************************************
**
** Function BTM_ReadInquiryRspTxPower
**
** Description This command will read the inquiry Transmit Power level used
** to transmit the FHS and EIR data packets.
** This can be used directly in the Tx Power Level EIR data type.
**
** Returns BTM_SUCCESS if successful
**
*******************************************************************************/
tBTM_STATUS BTM_ReadInquiryRspTxPower (tBTM_CMPL_CB *p_cb)
{
if (btm_cb.devcb.p_txpwer_cmpl_cb) {
return (BTM_BUSY);
}
btu_start_timer (&btm_cb.devcb.txpwer_timer, BTU_TTYPE_BTM_ACL, BTM_INQ_REPLY_TIMEOUT );
btm_cb.devcb.p_txpwer_cmpl_cb = p_cb;
if (!btsnd_hcic_read_inq_tx_power ()) {
btm_cb.devcb.p_txpwer_cmpl_cb = NULL;
btu_stop_timer (&btm_cb.devcb.txpwer_timer);
return (BTM_NO_RESOURCES);
} else {
return (BTM_CMD_STARTED);
}
}
/*********************************************************************************
**********************************************************************************
** **
** BTM Internal Inquiry Functions **
** **
**********************************************************************************
*********************************************************************************/
/*******************************************************************************
**
** Function btm_inq_db_reset
**
** Description This function is called at at reset to clear the inquiry
** database & pending callback.
**
** Returns void
**
*******************************************************************************/
void btm_inq_db_reset (void)
{
tBTM_REMOTE_DEV_NAME rem_name;
tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars;
UINT8 num_responses;
UINT8 temp_inq_active;
tBTM_STATUS status;
btu_stop_timer (&p_inq->inq_timer_ent);
/* If an inquiry or periodic inquiry is active, reset the mode to inactive */
if (p_inq->inq_active != BTM_INQUIRY_INACTIVE) {
temp_inq_active = p_inq->inq_active; /* Save so state can change BEFORE
callback is called */
p_inq->inq_active = BTM_INQUIRY_INACTIVE;
/* If not a periodic inquiry, the complete callback must be called to notify caller */
if (temp_inq_active == BTM_LIMITED_INQUIRY_ACTIVE ||
temp_inq_active == BTM_GENERAL_INQUIRY_ACTIVE) {
if (p_inq->p_inq_cmpl_cb) {
num_responses = 0;
(*p_inq->p_inq_cmpl_cb)(&num_responses);
}
}
}
/* Cancel a remote name request if active, and notify the caller (if waiting) */
if (p_inq->remname_active ) {
btu_stop_timer (&p_inq->rmt_name_timer_ent);
p_inq->remname_active = FALSE;
memset(p_inq->remname_bda, 0, BD_ADDR_LEN);
if (p_inq->p_remname_cmpl_cb) {
rem_name.status = BTM_DEV_RESET;
(*p_inq->p_remname_cmpl_cb)(&rem_name);
p_inq->p_remname_cmpl_cb = NULL;
}
}
/* Cancel an inquiry filter request if active, and notify the caller (if waiting) */
if (p_inq->inqfilt_active) {
p_inq->inqfilt_active = FALSE;
if (p_inq->p_inqfilter_cmpl_cb) {
status = BTM_DEV_RESET;
(*p_inq->p_inqfilter_cmpl_cb)(&status);
}
}
p_inq->state = BTM_INQ_INACTIVE_STATE;
p_inq->pending_filt_complete_event = 0;
p_inq->p_inq_results_cb = NULL;
btm_clr_inq_db(NULL); /* Clear out all the entries in the database */
btm_clr_inq_result_flt();
p_inq->discoverable_mode = BTM_NON_DISCOVERABLE;
p_inq->connectable_mode = BTM_NON_CONNECTABLE;
p_inq->page_scan_type = BTM_SCAN_TYPE_STANDARD;
p_inq->inq_scan_type = BTM_SCAN_TYPE_STANDARD;
#if BLE_INCLUDED == TRUE
p_inq->discoverable_mode |= BTM_BLE_NON_DISCOVERABLE;
p_inq->connectable_mode |= BTM_BLE_NON_CONNECTABLE;
#endif
return;
}
/*********************************************************************************
**
** Function btm_inq_db_init
**
** Description This function is called at startup to initialize the inquiry
** database.
**
** Returns void
**
*******************************************************************************/
void btm_inq_db_init (void)
{
#if 0 /* cleared in btm_init; put back in if called from anywhere else! */
memset (&btm_cb.btm_inq_vars, 0, sizeof (tBTM_INQUIRY_VAR_ST));
#endif
btu_free_timer(&btm_cb.btm_inq_vars.rmt_name_timer_ent);
memset(&btm_cb.btm_inq_vars.rmt_name_timer_ent, 0, sizeof(TIMER_LIST_ENT));
btu_free_timer(&btm_cb.btm_inq_vars.inq_timer_ent);
memset(&btm_cb.btm_inq_vars.inq_timer_ent, 0, sizeof(TIMER_LIST_ENT));
btm_cb.btm_inq_vars.no_inc_ssp = BTM_NO_SSP_ON_INQUIRY;
}
/*********************************************************************************
**
** Function btm_inq_stop_on_ssp
**
** Description This function is called on incoming SSP
**
** Returns void
**
*******************************************************************************/
void btm_inq_stop_on_ssp(void)
{
UINT8 normal_active = (BTM_GENERAL_INQUIRY_ACTIVE | BTM_LIMITED_INQUIRY_ACTIVE);
#if (BTM_INQ_DEBUG == TRUE)
BTM_TRACE_DEBUG ("btm_inq_stop_on_ssp: no_inc_ssp=%d inq_active:0x%x state:%d inqfilt_active:%d\n",
btm_cb.btm_inq_vars.no_inc_ssp, btm_cb.btm_inq_vars.inq_active, btm_cb.btm_inq_vars.state, btm_cb.btm_inq_vars.inqfilt_active);
#endif
if (btm_cb.btm_inq_vars.no_inc_ssp) {
if (btm_cb.btm_inq_vars.state == BTM_INQ_ACTIVE_STATE) {
if (btm_cb.btm_inq_vars.inq_active & BTM_PERIODIC_INQUIRY_ACTIVE) {
BTM_CancelPeriodicInquiry();
} else if (btm_cb.btm_inq_vars.inq_active & normal_active) {
/* can not call BTM_CancelInquiry() here. We need to report inquiry complete evt */
btsnd_hcic_inq_cancel();
}
}
/* do not allow inquiry to start */
btm_cb.btm_inq_vars.inq_active |= BTM_SSP_INQUIRY_ACTIVE;
}
}
/*********************************************************************************
**
** Function btm_inq_clear_ssp
**
** Description This function is called when pairing_state becomes idle
**
** Returns void
**
*******************************************************************************/
void btm_inq_clear_ssp(void)
{
btm_cb.btm_inq_vars.inq_active &= ~BTM_SSP_INQUIRY_ACTIVE;
}
/*********************************************************************************
**
** Function btm_clr_inq_db
**
** Description This function is called to clear out a device or all devices
** from the inquiry database.
**
** Parameter p_bda - (input) BD_ADDR -> Address of device to clear
** (NULL clears all entries)
**
** Returns void
**
*******************************************************************************/
void btm_clr_inq_db (BD_ADDR p_bda)
{
tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars;
tINQ_DB_ENT *p_ent = p_inq->inq_db;
UINT16 xx;
#if (BTM_INQ_DEBUG == TRUE)
BTM_TRACE_DEBUG ("btm_clr_inq_db: inq_active:0x%x state:%d\n",
btm_cb.btm_inq_vars.inq_active, btm_cb.btm_inq_vars.state);
#endif
for (xx = 0; xx < BTM_INQ_DB_SIZE; xx++, p_ent++) {
if (p_ent->in_use) {
/* If this is the specified BD_ADDR or clearing all devices */
if (p_bda == NULL ||
(!memcmp (p_ent->inq_info.results.remote_bd_addr, p_bda, BD_ADDR_LEN))) {
p_ent->in_use = FALSE;
}
}
}
#if (BTM_INQ_DEBUG == TRUE)
BTM_TRACE_DEBUG ("inq_active:0x%x state:%d\n",
btm_cb.btm_inq_vars.inq_active, btm_cb.btm_inq_vars.state);
#endif
}
/*******************************************************************************
**
** Function btm_clr_inq_result_flt
**
** Description This function looks through the bdaddr database for a match
** based on Bluetooth Device Address
**
** Returns TRUE if found, else FALSE (new entry)
**
*******************************************************************************/
static void btm_clr_inq_result_flt (void)
{
tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars;
if (p_inq->p_bd_db) {
osi_free(p_inq->p_bd_db);
p_inq->p_bd_db = NULL;
}
p_inq->num_bd_entries = 0;
p_inq->max_bd_entries = 0;
}
/*******************************************************************************
**
** Function btm_inq_find_bdaddr
**
** Description This function looks through the bdaddr database for a match
** based on Bluetooth Device Address
**
** Returns TRUE if found, else FALSE (new entry)
**
*******************************************************************************/
BOOLEAN btm_inq_find_bdaddr (BD_ADDR p_bda)
{
tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars;
tINQ_BDADDR *p_db = &p_inq->p_bd_db[0];
UINT16 xx;
/* Don't bother searching, database doesn't exist or periodic mode */
if ((p_inq->inq_active & BTM_PERIODIC_INQUIRY_ACTIVE) || !p_db) {
return (FALSE);
}
for (xx = 0; xx < p_inq->num_bd_entries; xx++, p_db++) {
if (!memcmp(p_db->bd_addr, p_bda, BD_ADDR_LEN)
&& p_db->inq_count == p_inq->inq_counter) {
return (TRUE);
}
}
if (xx < p_inq->max_bd_entries) {
p_db->inq_count = p_inq->inq_counter;
memcpy(p_db->bd_addr, p_bda, BD_ADDR_LEN);
p_inq->num_bd_entries++;
}
/* If here, New Entry */
return (FALSE);
}
/*******************************************************************************
**
** Function btm_inq_db_find
**
** Description This function looks through the inquiry database for a match
** based on Bluetooth Device Address
**
** Returns pointer to entry, or NULL if not found
**
*******************************************************************************/
tINQ_DB_ENT *btm_inq_db_find (BD_ADDR p_bda)
{
UINT16 xx;
tINQ_DB_ENT *p_ent = btm_cb.btm_inq_vars.inq_db;
for (xx = 0; xx < BTM_INQ_DB_SIZE; xx++, p_ent++) {
if ((p_ent->in_use) && (!memcmp (p_ent->inq_info.results.remote_bd_addr, p_bda, BD_ADDR_LEN))) {
return (p_ent);
}
}
/* If here, not found */
return (NULL);
}
/*******************************************************************************
**
** Function btm_inq_db_new
**
** Description This function looks through the inquiry database for an unused
** entry. If no entry is free, it allocates the oldest entry.
**
** Returns pointer to entry
**
*******************************************************************************/
tINQ_DB_ENT *btm_inq_db_new (BD_ADDR p_bda)
{
UINT16 xx;
tINQ_DB_ENT *p_ent = btm_cb.btm_inq_vars.inq_db;
tINQ_DB_ENT *p_old = btm_cb.btm_inq_vars.inq_db;
UINT32 ot = 0xFFFFFFFF;
for (xx = 0; xx < BTM_INQ_DB_SIZE; xx++, p_ent++) {
if (!p_ent->in_use) {
memset (p_ent, 0, sizeof (tINQ_DB_ENT));
memcpy (p_ent->inq_info.results.remote_bd_addr, p_bda, BD_ADDR_LEN);
p_ent->in_use = TRUE;
return (p_ent);
}
if (p_ent->time_of_resp < ot) {
p_old = p_ent;
ot = p_ent->time_of_resp;
}
}
/* If here, no free entry found. Return the oldest. */
memset (p_old, 0, sizeof (tINQ_DB_ENT));
memcpy (p_old->inq_info.results.remote_bd_addr, p_bda, BD_ADDR_LEN);
p_old->in_use = TRUE;
return (p_old);
}
/*******************************************************************************
**
** Function btm_set_inq_event_filter
**
** Description This function is called to set the inquiry event filter.
** It is called by either internally, or by the external API function
** (BTM_SetInqEventFilter). It is used internally as part of the
** inquiry processing.
**
** Input Params:
** filter_cond_type - this is the type of inquiry filter to apply:
** BTM_FILTER_COND_DEVICE_CLASS,
** BTM_FILTER_COND_BD_ADDR, or
** BTM_CLR_INQUIRY_FILTER
**
** p_filt_cond - this is either a BD_ADDR or DEV_CLASS depending on the
** filter_cond_type (See section 4.7.3 of Core Spec 1.0b).
**
** Returns BTM_CMD_STARTED if successfully initiated
** BTM_NO_RESOURCES if couldn't get a memory pool buffer
** BTM_ILLEGAL_VALUE if a bad parameter was detected
**
*******************************************************************************/
static tBTM_STATUS btm_set_inq_event_filter (UINT8 filter_cond_type,
tBTM_INQ_FILT_COND *p_filt_cond)
{
UINT8 condition_length = DEV_CLASS_LEN * 2;
UINT8 condition_buf[DEV_CLASS_LEN * 2];
UINT8 *p_cond = condition_buf; /* points to the condition to pass to HCI */
#if (BTM_INQ_DEBUG == TRUE)
BTM_TRACE_DEBUG ("btm_set_inq_event_filter: filter type %d [Clear-0, COD-1, BDADDR-2]\n",
filter_cond_type);
BTM_TRACE_DEBUG (" condition [%02x%02x%02x %02x%02x%02x]\n",
p_filt_cond->bdaddr_cond[0], p_filt_cond->bdaddr_cond[1], p_filt_cond->bdaddr_cond[2],
p_filt_cond->bdaddr_cond[3], p_filt_cond->bdaddr_cond[4], p_filt_cond->bdaddr_cond[5]);
#endif
/* Load the correct filter condition to pass to the lower layer */
switch (filter_cond_type) {
case BTM_FILTER_COND_DEVICE_CLASS:
/* copy the device class and device class fields into contiguous memory to send to HCI */
memcpy (condition_buf, p_filt_cond->cod_cond.dev_class, DEV_CLASS_LEN);
memcpy (&condition_buf[DEV_CLASS_LEN],
p_filt_cond->cod_cond.dev_class_mask, DEV_CLASS_LEN);
/* condition length should already be set as the default */
break;
case BTM_FILTER_COND_BD_ADDR:
p_cond = p_filt_cond->bdaddr_cond;
/* condition length should already be set as the default */
break;
case BTM_CLR_INQUIRY_FILTER:
condition_length = 0;
break;
default:
return (BTM_ILLEGAL_VALUE); /* Bad parameter was passed in */
}
btm_cb.btm_inq_vars.inqfilt_active = TRUE;
/* Filter the inquiry results for the specified condition type and value */
if (btsnd_hcic_set_event_filter(HCI_FILTER_INQUIRY_RESULT, filter_cond_type,
p_cond, condition_length))
{
return (BTM_CMD_STARTED);
} else {
return (BTM_NO_RESOURCES);
}
}
/*******************************************************************************
**
** Function btm_event_filter_complete
**
** Description This function is called when a set event filter has completed.
** Note: This routine currently only handles inquiry filters.
** Connection filters are ignored for now.
**
** Returns void
**
*******************************************************************************/
void btm_event_filter_complete (UINT8 *p)
{
UINT8 hci_status;
tBTM_STATUS status;
tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars;
tBTM_CMPL_CB *p_cb = p_inq->p_inqfilter_cmpl_cb;
#if (BTM_INQ_DEBUG == TRUE)
BTM_TRACE_DEBUG ("btm_event_filter_complete: inq_active:0x%x state:%d inqfilt_active:%d\n",
btm_cb.btm_inq_vars.inq_active, btm_cb.btm_inq_vars.state, btm_cb.btm_inq_vars.inqfilt_active);
#endif
/* If the filter complete event is from an old or cancelled request, ignore it */
if (p_inq->pending_filt_complete_event) {
p_inq->pending_filt_complete_event--;
return;
}
/* Only process the inquiry filter; Ignore the connection filter until it
is used by the upper layers */
if (p_inq->inqfilt_active == TRUE ) {
/* Extract the returned status from the buffer */
STREAM_TO_UINT8 (hci_status, p);
if (hci_status != HCI_SUCCESS) {
/* If standalone operation, return the error status; if embedded in the inquiry, continue the inquiry */
BTM_TRACE_WARNING ("BTM Warning: Set Event Filter Failed (HCI returned 0x%x)\n", hci_status);
status = BTM_ERR_PROCESSING;
} else {
status = BTM_SUCCESS;
}
/* If the set filter was initiated externally (via BTM_SetInqEventFilter), call the
callback function to notify the initiator that it has completed */
if (p_inq->state == BTM_INQ_INACTIVE_STATE) {
p_inq->inqfilt_active = FALSE;
if (p_cb) {
(*p_cb) (&status);
}
} else /* An inquiry is active (the set filter command was internally generated),
process the next state of the process (Set a new filter or start the inquiry). */
{
if (status != BTM_SUCCESS) {
/* Process the inquiry complete (Error Status) */
btm_process_inq_complete (BTM_ERR_PROCESSING, (UINT8)(p_inq->inqparms.mode & BTM_BR_INQUIRY_MASK));
/* btm_process_inq_complete() does not restore the following settings on periodic inquiry */
p_inq->inqfilt_active = FALSE;
p_inq->inq_active = BTM_INQUIRY_INACTIVE;
p_inq->state = BTM_INQ_INACTIVE_STATE;
return;
}
/* Check to see if a new filter needs to be set up */
if (p_inq->state == BTM_INQ_CLR_FILT_STATE) {
if ((status = btm_set_inq_event_filter (p_inq->inqparms.filter_cond_type, &p_inq->inqparms.filter_cond)) == BTM_CMD_STARTED) {
p_inq->state = BTM_INQ_SET_FILT_STATE;
} else { /* Error setting the filter: Call the initiator's callback function to indicate a failure */
p_inq->inqfilt_active = FALSE;
/* Process the inquiry complete (Error Status) */
btm_process_inq_complete (BTM_ERR_PROCESSING, (UINT8)(p_inq->inqparms.mode & BTM_BR_INQUIRY_MASK));
}
} else { /* Initiate the Inquiry or Periodic Inquiry */
p_inq->state = BTM_INQ_ACTIVE_STATE;
p_inq->inqfilt_active = FALSE;
btm_initiate_inquiry (p_inq);
}
}
}
}
/*******************************************************************************
**
** Function btm_initiate_inquiry
**
** Description This function is called to start an inquiry or periodic inquiry
** upon completion of the setting and/or clearing of the inquiry filter.
**
** Inputs: p_inq (btm_cb.btm_inq_vars) - pointer to saved inquiry information
** mode - GENERAL or LIMITED inquiry
** duration - length in 1.28 sec intervals (If '0', the inquiry is CANCELLED)
** max_resps - maximum amount of devices to search for before ending the inquiry
** filter_cond_type - BTM_CLR_INQUIRY_FILTER, BTM_FILTER_COND_DEVICE_CLASS, or
** BTM_FILTER_COND_BD_ADDR
** filter_cond - value for the filter (based on filter_cond_type)
**
** Returns If an error occurs the initiator's callback is called with the error status.
**
*******************************************************************************/
static void btm_initiate_inquiry (tBTM_INQUIRY_VAR_ST *p_inq)
{
const LAP *lap;
tBTM_INQ_PARMS *p_inqparms = &p_inq->inqparms;
#if (BTM_INQ_DEBUG == TRUE)
BTM_TRACE_DEBUG ("btm_initiate_inquiry: inq_active:0x%x state:%d inqfilt_active:%d\n",
btm_cb.btm_inq_vars.inq_active, btm_cb.btm_inq_vars.state, btm_cb.btm_inq_vars.inqfilt_active);
#endif
btm_acl_update_busy_level (BTM_BLI_INQ_EVT);
if (p_inq->inq_active & BTM_SSP_INQUIRY_ACTIVE) {
btm_process_inq_complete (BTM_NO_RESOURCES, (UINT8)(p_inqparms->mode & BTM_BR_INQUIRY_MASK));
return;
}
/* Make sure the number of responses doesn't overflow the database configuration */
p_inqparms->max_resps = (UINT8)((p_inqparms->max_resps <= BTM_INQ_DB_SIZE) ? p_inqparms->max_resps : BTM_INQ_DB_SIZE);
lap = (p_inq->inq_active & BTM_LIMITED_INQUIRY_ACTIVE) ? &limited_inq_lap : &general_inq_lap;
if (p_inq->inq_active & BTM_PERIODIC_INQUIRY_ACTIVE) {
if (!btsnd_hcic_per_inq_mode (p_inq->per_max_delay,
p_inq->per_min_delay,
*lap, p_inqparms->duration,
p_inqparms->max_resps)) {
btm_process_inq_complete (BTM_NO_RESOURCES, (UINT8)(p_inqparms->mode & BTM_BR_INQUIRY_MASK));
}
} else {
btm_clr_inq_result_flt();
/* Allocate memory to hold bd_addrs responding */
if ((p_inq->p_bd_db = (tINQ_BDADDR *)osi_calloc(BT_DEFAULT_BUFFER_SIZE)) != NULL) {
p_inq->max_bd_entries = (UINT16)(BT_DEFAULT_BUFFER_SIZE / sizeof(tINQ_BDADDR));
/* BTM_TRACE_DEBUG("btm_initiate_inquiry: memory allocated for %d bdaddrs",
p_inq->max_bd_entries); */
}
if (!btsnd_hcic_inquiry(*lap, p_inqparms->duration, 0)) {
btm_process_inq_complete (BTM_NO_RESOURCES, (UINT8)(p_inqparms->mode & BTM_BR_INQUIRY_MASK));
}
}
}
/*******************************************************************************
**
** Function btm_process_inq_results
**
** Description This function is called when inquiry results are received from
** the device. It updates the inquiry database. If the inquiry
** database is full, the oldest entry is discarded.
**
** Parameters inq_res_mode - BTM_INQ_RESULT_STANDARD
** BTM_INQ_RESULT_WITH_RSSI
** BTM_INQ_RESULT_EXTENDED
**
** Returns void
**
*******************************************************************************/
void btm_process_inq_results (UINT8 *p, UINT8 inq_res_mode)
{
UINT8 num_resp, xx;
BD_ADDR bda;
tINQ_DB_ENT *p_i;
tBTM_INQ_RESULTS *p_cur = NULL;
BOOLEAN is_new = TRUE;
BOOLEAN update = FALSE;
INT8 i_rssi;
tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars;
tBTM_INQ_RESULTS_CB *p_inq_results_cb = p_inq->p_inq_results_cb;
UINT8 page_scan_rep_mode = 0;
UINT8 page_scan_per_mode = 0;
UINT8 page_scan_mode = 0;
UINT8 rssi = 0;
DEV_CLASS dc;
UINT16 clock_offset;
UINT8 *p_eir_data = NULL;
#if (BTM_INQ_DEBUG == TRUE)
BTM_TRACE_DEBUG ("btm_process_inq_results inq_active:0x%x state:%d inqfilt_active:%d inq_res_mode=%d\n",
btm_cb.btm_inq_vars.inq_active, btm_cb.btm_inq_vars.state, btm_cb.btm_inq_vars.inqfilt_active, inq_res_mode);
#endif
/* Only process the results if the BR inquiry is still active */
if (!(p_inq->inq_active & BTM_BR_INQ_ACTIVE_MASK)) {
return;
}
STREAM_TO_UINT8 (num_resp, p);
for (xx = 0; xx < num_resp; xx++) {
update = FALSE;
/* Extract inquiry results */
STREAM_TO_BDADDR (bda, p);
STREAM_TO_UINT8 (page_scan_rep_mode, p);
STREAM_TO_UINT8 (page_scan_per_mode, p);
if (inq_res_mode == BTM_INQ_RESULT_STANDARD) {
STREAM_TO_UINT8(page_scan_mode, p);
}
STREAM_TO_DEVCLASS (dc, p);
STREAM_TO_UINT16 (clock_offset, p);
if (inq_res_mode != BTM_INQ_RESULT_STANDARD) {
STREAM_TO_UINT8(rssi, p);
}
p_i = btm_inq_db_find (bda);
/* Only process the num_resp is smaller than max_resps.
If results are queued to BTU task while canceling inquiry,
or when more than one result is in this response, > max_resp
responses could be processed which can confuse some apps
*/
if (p_inq->inqparms.max_resps &&
p_inq->inq_cmpl_info.num_resp >= p_inq->inqparms.max_resps
#if BLE_INCLUDED == TRUE
/* new device response */
&& ( p_i == NULL ||
/* exisiting device with BR/EDR info */
(p_i && (p_i->inq_info.results.device_type & BT_DEVICE_TYPE_BREDR) != 0)
)
#endif
) {
BTM_TRACE_WARNING("INQ RES: Extra Response Received...ignoring\n");
return;
}
/* Check if this address has already been processed for this inquiry */
if (btm_inq_find_bdaddr(bda)) {
BTM_TRACE_DEBUG("BDA seen before [%02x%02x %02x%02x %02x%02x]\n",
bda[0], bda[1], bda[2], bda[3], bda[4], bda[5]);
/* By default suppose no update needed */
i_rssi = (INT8)rssi;
/* If this new RSSI is higher than the last one */
if (p_inq->inqparms.report_dup && (rssi != 0) &&
p_i && (i_rssi > p_i->inq_info.results.rssi || p_i->inq_info.results.rssi == 0
#if BLE_INCLUDED == TRUE
/* BR/EDR inquiry information update */
|| (p_i->inq_info.results.device_type & BT_DEVICE_TYPE_BREDR) != 0
#endif
)) {
p_cur = &p_i->inq_info.results;
BTM_TRACE_DEBUG("update RSSI new:%d, old:%d\n", i_rssi, p_cur->rssi);
p_cur->rssi = i_rssi;
update = TRUE;
}
/* If we received a second Extended Inq Event for an already */
/* discovered device, this is because for the first one EIR was not received */
else if ((inq_res_mode == BTM_INQ_RESULT_EXTENDED) && (p_i)) {
p_cur = &p_i->inq_info.results;
update = TRUE;
}
/* If no update needed continue with next response (if any) */
else {
continue;
}
}
/* If existing entry, use that, else get a new one (possibly reusing the oldest) */
if (p_i == NULL) {
p_i = btm_inq_db_new (bda);
is_new = TRUE;
}
/* If an entry for the device already exists, overwrite it ONLY if it is from
a previous inquiry. (Ignore it if it is a duplicate response from the same
inquiry.
*/
else if (p_i->inq_count == p_inq->inq_counter
#if (BLE_INCLUDED == TRUE )
&& (p_i->inq_info.results.device_type == BT_DEVICE_TYPE_BREDR)
#endif
) {
is_new = FALSE;
}
/* keep updating RSSI to have latest value */
if ( inq_res_mode != BTM_INQ_RESULT_STANDARD ) {
p_i->inq_info.results.rssi = (INT8)rssi;
} else {
p_i->inq_info.results.rssi = BTM_INQ_RES_IGNORE_RSSI;
}
if (is_new == TRUE) {
/* Save the info */
p_cur = &p_i->inq_info.results;
p_cur->page_scan_rep_mode = page_scan_rep_mode;
p_cur->page_scan_per_mode = page_scan_per_mode;
p_cur->page_scan_mode = page_scan_mode;
p_cur->dev_class[0] = dc[0];
p_cur->dev_class[1] = dc[1];
p_cur->dev_class[2] = dc[2];
p_cur->clock_offset = clock_offset | BTM_CLOCK_OFFSET_VALID;
p_i->time_of_resp = osi_time_get_os_boottime_ms();
if (p_i->inq_count != p_inq->inq_counter) {
p_inq->inq_cmpl_info.num_resp++; /* A new response was found */
}
#if (defined BLE_INCLUDED && BLE_INCLUDED == TRUE)
p_cur->inq_result_type = BTM_INQ_RESULT_BR;
if (p_i->inq_count != p_inq->inq_counter) {
p_cur->device_type = BT_DEVICE_TYPE_BREDR;
p_i->scan_rsp = FALSE;
} else {
p_cur->device_type |= BT_DEVICE_TYPE_BREDR;
}
#endif
p_i->inq_count = p_inq->inq_counter; /* Mark entry for current inquiry */
/* If the number of responses found and not unlimited, issue a cancel inquiry */
if (!(p_inq->inq_active & BTM_PERIODIC_INQUIRY_ACTIVE) &&
p_inq->inqparms.max_resps &&
p_inq->inq_cmpl_info.num_resp == p_inq->inqparms.max_resps
#if BLE_INCLUDED == TRUE
/* BLE scanning is active and received adv */
&& ((((p_inq->inqparms.mode & BTM_BLE_INQUIRY_MASK) != 0) &&
p_cur->device_type == BT_DEVICE_TYPE_DUMO && p_i->scan_rsp) ||
(p_inq->inqparms.mode & BTM_BLE_INQUIRY_MASK) == 0)
#endif
) {
/* BTM_TRACE_DEBUG("BTMINQ: Found devices, cancelling inquiry..."); */
btsnd_hcic_inq_cancel();
#if BLE_INCLUDED == TRUE
if ((p_inq->inqparms.mode & BTM_BLE_INQUIRY_MASK) != 0) {
btm_ble_stop_inquiry();
}
#endif
btm_acl_update_busy_level (BTM_BLI_INQ_DONE_EVT);
}
/* Initialize flag to FALSE. This flag is set/used by application */
p_i->inq_info.appl_knows_rem_name = FALSE;
}
if (is_new || update) {
if ( inq_res_mode == BTM_INQ_RESULT_EXTENDED ) {
memset( p_cur->eir_uuid, 0,
BTM_EIR_SERVICE_ARRAY_SIZE * (BTM_EIR_ARRAY_BITS / 8));
/* set bit map of UUID list from received EIR */
btm_set_eir_uuid( p, p_cur );
p_eir_data = p;
} else {
p_eir_data = NULL;
}
/* If a callback is registered, call it with the results */
if (p_inq_results_cb) {
(p_inq_results_cb)((tBTM_INQ_RESULTS *) p_cur, p_eir_data);
}
}
}
}
/*******************************************************************************
**
** Function btm_sort_inq_result
**
** Description This function is called when inquiry complete is received
** from the device to sort inquiry results based on rssi.
**
** Returns void
**
*******************************************************************************/
void btm_sort_inq_result(void)
{
UINT8 xx, yy, num_resp;
tINQ_DB_ENT *p_tmp = NULL;
tINQ_DB_ENT *p_ent = btm_cb.btm_inq_vars.inq_db;
tINQ_DB_ENT *p_next = btm_cb.btm_inq_vars.inq_db + 1;
int size;
num_resp = (btm_cb.btm_inq_vars.inq_cmpl_info.num_resp < BTM_INQ_DB_SIZE) ?
btm_cb.btm_inq_vars.inq_cmpl_info.num_resp : BTM_INQ_DB_SIZE;
if ((p_tmp = (tINQ_DB_ENT *)osi_malloc(sizeof(tINQ_DB_ENT))) != NULL) {
size = sizeof(tINQ_DB_ENT);
for (xx = 0; xx < num_resp - 1; xx++, p_ent++) {
for (yy = xx + 1, p_next = p_ent + 1; yy < num_resp; yy++, p_next++) {
if (p_ent->inq_info.results.rssi < p_next->inq_info.results.rssi) {
memcpy (p_tmp, p_next, size);
memcpy (p_next, p_ent, size);
memcpy (p_ent, p_tmp, size);
}
}
}
osi_free(p_tmp);
}
}
/*******************************************************************************
**
** Function btm_process_inq_complete
**
** Description This function is called when inquiry complete is received
** from the device. Call the callback if not in periodic inquiry
** mode AND it is not NULL (The caller wants the event).
**
** The callback pass back the status and the number of responses
**
** Returns void
**
*******************************************************************************/
void btm_process_inq_complete (UINT8 status, UINT8 mode)
{
tBTM_CMPL_CB *p_inq_cb = btm_cb.btm_inq_vars.p_inq_cmpl_cb;
tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars;
#if (defined(BTA_HOST_INTERLEAVE_SEARCH) && BTA_HOST_INTERLEAVE_SEARCH == TRUE)
/* inquiry inactive case happens when inquiry is cancelled.
Make mode 0 for no further inquiries from the current inquiry process
*/
if (status != HCI_SUCCESS || p_inq->next_state == BTM_FINISH || !p_inq->inq_active) {
/* re-initialize for next inquiry request */
p_inq->next_state = BTM_BR_ONE;
/* make the mode 0 here */
p_inq->inqparms.mode &= ~(p_inq->inqparms.mode);
}
#endif
#if (!defined(BTA_HOST_INTERLEAVE_SEARCH) || BTA_HOST_INTERLEAVE_SEARCH == FALSE)
p_inq->inqparms.mode &= ~(mode);
#endif
if (p_inq->scan_type == INQ_LE_OBSERVE && !p_inq->inq_active) {
/*end of LE observe*/
p_inq->p_inq_ble_results_cb = (tBTM_INQ_RESULTS_CB *) NULL;
p_inq->p_inq_ble_cmpl_cb = (tBTM_CMPL_CB *) NULL;
p_inq->scan_type = INQ_NONE;
}
#if (BTM_INQ_DEBUG == TRUE)
BTM_TRACE_DEBUG ("btm_process_inq_complete inq_active:0x%x state:%d inqfilt_active:%d\n",
btm_cb.btm_inq_vars.inq_active, btm_cb.btm_inq_vars.state, btm_cb.btm_inq_vars.inqfilt_active);
#endif
btm_acl_update_busy_level (BTM_BLI_INQ_DONE_EVT);
/* Ignore any stray or late complete messages if the inquiry is not active */
if (p_inq->inq_active) {
p_inq->inq_cmpl_info.status = (tBTM_STATUS)((status == HCI_SUCCESS) ? BTM_SUCCESS : BTM_ERR_PROCESSING);
/* Notify caller that the inquiry has completed; (periodic inquiries do not send completion events */
if (!(p_inq->inq_active & BTM_PERIODIC_INQUIRY_ACTIVE) && p_inq->inqparms.mode == 0) {
#if BLE_INCLUDED == TRUE
btm_clear_all_pending_le_entry();
#endif
p_inq->state = BTM_INQ_INACTIVE_STATE;
/* Increment so the start of a next inquiry has a new count */
p_inq->inq_counter++;
btm_clr_inq_result_flt();
if ((p_inq->inq_cmpl_info.status == BTM_SUCCESS) &&
controller_get_interface()->supports_rssi_with_inquiry_results()) {
btm_sort_inq_result();
}
/* Clear the results callback if set */
p_inq->p_inq_results_cb = (tBTM_INQ_RESULTS_CB *) NULL;
p_inq->inq_active = BTM_INQUIRY_INACTIVE;
p_inq->p_inq_cmpl_cb = (tBTM_CMPL_CB *) NULL;
/* If we have a callback registered for inquiry complete, call it */
BTM_TRACE_DEBUG ("BTM Inq Compl Callback: status 0x%02x, num results %d\n",
p_inq->inq_cmpl_info.status, p_inq->inq_cmpl_info.num_resp);
if (p_inq_cb) {
(p_inq_cb)((tBTM_INQUIRY_CMPL *) &p_inq->inq_cmpl_info);
}
}
#if (defined(BTA_HOST_INTERLEAVE_SEARCH) && BTA_HOST_INTERLEAVE_SEARCH == TRUE)
if (p_inq->inqparms.mode != 0 && !(p_inq->inq_active & BTM_PERIODIC_INQUIRY_ACTIVE)) {
/* make inquiry inactive for next iteration */
p_inq->inq_active = BTM_INQUIRY_INACTIVE;
/* call the inquiry again */
BTM_StartInquiry(&p_inq->inqparms, p_inq->p_inq_results_cb, p_inq->p_inq_cmpl_cb);
}
#endif
}
if (p_inq->inqparms.mode == 0 && p_inq->scan_type == INQ_GENERAL) { //this inquiry is complete
p_inq->scan_type = INQ_NONE;
#if (defined BLE_INCLUDED && BLE_INCLUDED == TRUE)
/* check if the LE observe is pending */
if (p_inq->p_inq_ble_results_cb != NULL) {
BTM_TRACE_DEBUG("BTM Inq Compl: resuming a pending LE scan");
BTM_BleObserve(1, 0, p_inq->p_inq_ble_results_cb, p_inq->p_inq_ble_cmpl_cb);
}
#endif
}
#if (BTM_INQ_DEBUG == TRUE)
BTM_TRACE_DEBUG ("inq_active:0x%x state:%d inqfilt_active:%d\n",
btm_cb.btm_inq_vars.inq_active, btm_cb.btm_inq_vars.state, btm_cb.btm_inq_vars.inqfilt_active);
#endif
}
/*******************************************************************************
**
** Function btm_process_cancel_complete
**
** Description This function is called when inquiry cancel complete is received
** from the device.This function will also call the btm_process_inq_complete
** This function is needed to differentiate a cancel_cmpl_evt from the
** inq_cmpl_evt
**
** Returns void
**
*******************************************************************************/
void btm_process_cancel_complete(UINT8 status, UINT8 mode)
{
btm_acl_update_busy_level (BTM_BLI_INQ_CANCEL_EVT);
btm_process_inq_complete(status, mode);
}
/*******************************************************************************
**
** Function btm_initiate_rem_name
**
** Description This function looks initiates a remote name request. It is called
** either by GAP or by the API call BTM_ReadRemoteDeviceName.
**
** Input Params: p_cur - pointer to an inquiry result structure (NULL if nonexistent)
** p_cb - callback function called when BTM_CMD_STARTED
** is returned.
** A pointer to tBTM_REMOTE_DEV_NAME is passed to the
** callback.
**
** Returns
** BTM_CMD_STARTED is returned if the request was sent to HCI.
** BTM_BUSY if already in progress
** BTM_NO_RESOURCES if could not allocate resources to start the command
** BTM_WRONG_MODE if the device is not up.
**
*******************************************************************************/
tBTM_STATUS btm_initiate_rem_name (BD_ADDR remote_bda, tBTM_INQ_INFO *p_cur,
UINT8 origin, UINT32 timeout, tBTM_CMPL_CB *p_cb)
{
tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars;
BOOLEAN cmd_ok;
/*** Make sure the device is ready ***/
if (!BTM_IsDeviceUp()) {
return (BTM_WRONG_MODE);
}
if (origin == BTM_RMT_NAME_SEC) {
cmd_ok = btsnd_hcic_rmt_name_req (remote_bda, HCI_PAGE_SCAN_REP_MODE_R1,
HCI_MANDATARY_PAGE_SCAN_MODE, 0);
if (cmd_ok) {
return BTM_CMD_STARTED;
} else {
return BTM_NO_RESOURCES;
}
}
/* Make sure there are no two remote name requests from external API in progress */
else if (origin == BTM_RMT_NAME_EXT) {
if (p_inq->remname_active) {
return (BTM_BUSY);
} else {
/* If there is no remote name request running,call the callback function and start timer */
p_inq->p_remname_cmpl_cb = p_cb;
memcpy(p_inq->remname_bda, remote_bda, BD_ADDR_LEN);
btu_start_timer (&p_inq->rmt_name_timer_ent,
BTU_TTYPE_BTM_RMT_NAME,
timeout);
/* If the database entry exists for the device, use its clock offset */
if (p_cur) {
cmd_ok = btsnd_hcic_rmt_name_req (remote_bda,
p_cur->results.page_scan_rep_mode,
p_cur->results.page_scan_mode,
(UINT16)(p_cur->results.clock_offset |
BTM_CLOCK_OFFSET_VALID));
} else { /* Otherwise use defaults and mark the clock offset as invalid */
cmd_ok = btsnd_hcic_rmt_name_req (remote_bda, HCI_PAGE_SCAN_REP_MODE_R1,
HCI_MANDATARY_PAGE_SCAN_MODE, 0);
}
if (cmd_ok) {
p_inq->remname_active = TRUE;
return BTM_CMD_STARTED;
} else {
return BTM_NO_RESOURCES;
}
}
} else {
return BTM_ILLEGAL_VALUE;
}
}
/*******************************************************************************
**
** Function btm_process_remote_name
**
** Description This function is called when a remote name is received from
** the device. If remote names are cached, it updates the inquiry
** database.
**
** Returns void
**
*******************************************************************************/
void btm_process_remote_name (BD_ADDR bda, BD_NAME bdn, UINT16 evt_len, UINT8 hci_status)
{
tBTM_REMOTE_DEV_NAME rem_name;
tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars;
tBTM_CMPL_CB *p_cb = p_inq->p_remname_cmpl_cb;
UINT8 *p_n1;
UINT16 temp_evt_len;
if (bda != NULL) {
BTM_TRACE_EVENT("BDA %02x:%02x:%02x:%02x:%02x:%02x\n", bda[0], bda[1],
bda[2], bda[3],
bda[4], bda[5]);
}
BTM_TRACE_EVENT("Inquire BDA %02x:%02x:%02x:%02x:%02x:%02x\n", p_inq->remname_bda[0], p_inq->remname_bda[1],
p_inq->remname_bda[2], p_inq->remname_bda[3],
p_inq->remname_bda[4], p_inq->remname_bda[5]);
/* If the inquire BDA and remote DBA are the same, then stop the timer and set the active to false */
if ((p_inq->remname_active == TRUE) &&
(((bda != NULL) &&
(memcmp(bda, p_inq->remname_bda, BD_ADDR_LEN) == 0)) || bda == NULL))
{
#if BLE_INCLUDED == TRUE
if (BTM_UseLeLink(p_inq->remname_bda)) {
if (hci_status == HCI_ERR_UNSPECIFIED) {
btm_ble_cancel_remote_name(p_inq->remname_bda);
}
}
#endif
btu_stop_timer (&p_inq->rmt_name_timer_ent);
p_inq->remname_active = FALSE;
/* Clean up and return the status if the command was not successful */
/* Note: If part of the inquiry, the name is not stored, and the */
/* inquiry complete callback is called. */
if (hci_status == HCI_SUCCESS) {
/* Copy the name from the data stream into the return structure */
/* Note that even if it is not being returned, it is used as a */
/* temporary buffer. */
p_n1 = (UINT8 *)rem_name.remote_bd_name;
rem_name.length = (evt_len < BD_NAME_LEN) ? evt_len : BD_NAME_LEN;
rem_name.remote_bd_name[rem_name.length] = 0;
rem_name.status = BTM_SUCCESS;
temp_evt_len = rem_name.length;
while (temp_evt_len > 0) {
*p_n1++ = *bdn++;
temp_evt_len--;
}
rem_name.remote_bd_name[rem_name.length] = 0;
}
/* If processing a stand alone remote name then report the error in the callback */
else {
rem_name.status = BTM_BAD_VALUE_RET;
rem_name.length = 0;
rem_name.remote_bd_name[0] = 0;
}
/* Reset the remote BAD to zero and call callback if possible */
memset(p_inq->remname_bda, 0, BD_ADDR_LEN);
p_inq->p_remname_cmpl_cb = NULL;
if (p_cb) {
(p_cb)((tBTM_REMOTE_DEV_NAME *)&rem_name);
}
}
}
/*******************************************************************************
**
** Function btm_inq_rmt_name_failed
**
** Description This function is if timeout expires while getting remote
** name. This is done for devices that incorrectly do not
** report operation failure
**
** Returns void
**
*******************************************************************************/
void btm_inq_rmt_name_failed (void)
{
BTM_TRACE_ERROR ("btm_inq_rmt_name_failed() remname_active=%d\n", btm_cb.btm_inq_vars.remname_active);
if (btm_cb.btm_inq_vars.remname_active) {
btm_process_remote_name (btm_cb.btm_inq_vars.remname_bda, NULL, 0, HCI_ERR_UNSPECIFIED);
} else {
btm_process_remote_name (NULL, NULL, 0, HCI_ERR_UNSPECIFIED);
}
#if (SMP_INCLUDED == TRUE)
btm_sec_rmt_name_request_complete (NULL, NULL, HCI_ERR_UNSPECIFIED);
#endif ///SMP_INCLUDED == TRUE
}
/*******************************************************************************
**
** Function btm_read_linq_tx_power_complete
**
** Description read inquiry tx power level complete callback function.
**
** Returns void
**
*******************************************************************************/
void btm_read_linq_tx_power_complete(UINT8 *p)
{
tBTM_CMPL_CB *p_cb = btm_cb.devcb.p_txpwer_cmpl_cb;
tBTM_INQ_TXPWR_RESULTS results;
btu_stop_timer (&btm_cb.devcb.txpwer_timer);
/* If there was a callback registered for read inq tx power, call it */
btm_cb.devcb.p_txpwer_cmpl_cb = NULL;
if (p_cb) {
STREAM_TO_UINT8 (results.hci_status, p);
if (results.hci_status == HCI_SUCCESS) {
results.status = BTM_SUCCESS;
STREAM_TO_UINT8 (results.tx_power, p);
BTM_TRACE_EVENT ("BTM INQ TX POWER Complete: tx_power %d, hci status 0x%02x\n",
results.tx_power, results.hci_status);
} else {
results.status = BTM_ERR_PROCESSING;
}
(*p_cb)(&results);
}
}
/*******************************************************************************
**
** Function BTM_WriteEIR
**
** Description This function is called to write EIR data to controller.
**
** Parameters p_buff - allocated HCI command buffer including extended
** inquriry response
** fec_required - FEC is required or not
**
** Returns BTM_SUCCESS - if successful
** BTM_MODE_UNSUPPORTED - if local device cannot support it
**
*******************************************************************************/
tBTM_STATUS BTM_WriteEIR( BT_HDR *p_buff, BOOLEAN fec_required)
{
if (controller_get_interface()->supports_extended_inquiry_response()) {
BTM_TRACE_API("Write Extended Inquiry Response to controller\n");
btsnd_hcic_write_ext_inquiry_response (p_buff, fec_required);
return BTM_SUCCESS;
} else {
osi_free(p_buff);
return BTM_MODE_UNSUPPORTED;
}
}
/*******************************************************************************
**
** Function BTM_CheckEirData
**
** Description This function is called to get EIR data from significant part.
**
** Parameters p_eir - pointer of EIR significant part
** type - finding EIR data type
** p_length - return the length of EIR data not including type
**
** Returns pointer of EIR data
**
*******************************************************************************/
UINT8 *BTM_CheckEirData( UINT8 *p_eir, UINT8 type, UINT8 *p_length )
{
UINT8 *p = p_eir;
UINT8 length;
UINT8 eir_type;
BTM_TRACE_API("BTM_CheckEirData type=0x%02X\n", type);
STREAM_TO_UINT8(length, p);
while ( length && (p - p_eir <= HCI_EXT_INQ_RESPONSE_LEN)) {
STREAM_TO_UINT8(eir_type, p);
if ( eir_type == type ) {
/* length doesn't include itself */
*p_length = length - 1; /* minus the length of type */
return p;
}
p += length - 1; /* skip the length of data */
STREAM_TO_UINT8(length, p);
}
*p_length = 0;
return NULL;
}
/*******************************************************************************
**
** Function btm_convert_uuid_to_eir_service
**
** Description This function is called to get the bit position of UUID.
**
** Parameters uuid16 - UUID 16-bit
**
** Returns BTM EIR service ID if found
** BTM_EIR_MAX_SERVICES - if not found
**
*******************************************************************************/
static UINT8 btm_convert_uuid_to_eir_service( UINT16 uuid16 )
{
UINT8 xx;
for ( xx = 0; xx < BTM_EIR_MAX_SERVICES; xx++ ) {
if ( uuid16 == BTM_EIR_UUID_LKUP_TBL[xx]) {
return xx;
}
}
return BTM_EIR_MAX_SERVICES;
}
/*******************************************************************************
**
** Function BTM_HasEirService
**
** Description This function is called to know if UUID in bit map of UUID.
**
** Parameters p_eir_uuid - bit map of UUID list
** uuid16 - UUID 16-bit
**
** Returns TRUE - if found
** FALSE - if not found
**
*******************************************************************************/
BOOLEAN BTM_HasEirService( UINT32 *p_eir_uuid, UINT16 uuid16 )
{
UINT8 service_id;
service_id = btm_convert_uuid_to_eir_service(uuid16);
if ( service_id < BTM_EIR_MAX_SERVICES ) {
return ( BTM_EIR_HAS_SERVICE( p_eir_uuid, service_id ));
} else {
return ( FALSE );
}
}
/*******************************************************************************
**
** Function BTM_HasInquiryEirService
**
** Description This function is called to know if UUID in bit map of UUID list.
**
** Parameters p_results - inquiry results
** uuid16 - UUID 16-bit
**
** Returns BTM_EIR_FOUND - if found
** BTM_EIR_NOT_FOUND - if not found and it is complete list
** BTM_EIR_UNKNOWN - if not found and it is not complete list
**
*******************************************************************************/
tBTM_EIR_SEARCH_RESULT BTM_HasInquiryEirService( tBTM_INQ_RESULTS *p_results, UINT16 uuid16 )
{
if ( BTM_HasEirService( p_results->eir_uuid, uuid16 )) {
return BTM_EIR_FOUND;
} else if ( p_results->eir_complete_list ) {
return BTM_EIR_NOT_FOUND;
} else {
return BTM_EIR_UNKNOWN;
}
}
/*******************************************************************************
**
** Function BTM_AddEirService
**
** Description This function is called to add a service in bit map of UUID list.
**
** Parameters p_eir_uuid - bit mask of UUID list for EIR
** uuid16 - UUID 16-bit
**
** Returns None
**
*******************************************************************************/
void BTM_AddEirService( UINT32 *p_eir_uuid, UINT16 uuid16 )
{
UINT8 service_id;
service_id = btm_convert_uuid_to_eir_service(uuid16);
if ( service_id < BTM_EIR_MAX_SERVICES ) {
BTM_EIR_SET_SERVICE( p_eir_uuid, service_id );
}
}
/*******************************************************************************
**
** Function BTM_RemoveEirService
**
** Description This function is called to remove a service in bit map of UUID list.
**
** Parameters p_eir_uuid - bit mask of UUID list for EIR
** uuid16 - UUID 16-bit
**
** Returns None
**
*******************************************************************************/
void BTM_RemoveEirService( UINT32 *p_eir_uuid, UINT16 uuid16 )
{
UINT8 service_id;
service_id = btm_convert_uuid_to_eir_service(uuid16);
if ( service_id < BTM_EIR_MAX_SERVICES ) {
BTM_EIR_CLR_SERVICE( p_eir_uuid, service_id );
}
}
/*******************************************************************************
**
** Function BTM_GetEirSupportedServices
**
** Description This function is called to get UUID list from bit map of UUID list.
**
** Parameters p_eir_uuid - bit mask of UUID list for EIR
** p - reference of current pointer of EIR
** max_num_uuid16 - max number of UUID can be written in EIR
** num_uuid16 - number of UUID have been written in EIR
**
** Returns BTM_EIR_MORE_16BITS_UUID_TYPE, if it has more than max
** BTM_EIR_COMPLETE_16BITS_UUID_TYPE, otherwise
**
*******************************************************************************/
UINT8 BTM_GetEirSupportedServices( UINT32 *p_eir_uuid, UINT8 **p,
UINT8 max_num_uuid16, UINT8 *p_num_uuid16)
{
UINT8 service_index;
*p_num_uuid16 = 0;
for (service_index = 0; service_index < BTM_EIR_MAX_SERVICES; service_index++) {
if ( BTM_EIR_HAS_SERVICE( p_eir_uuid, service_index )) {
if ( *p_num_uuid16 < max_num_uuid16 ) {
UINT16_TO_STREAM(*p, BTM_EIR_UUID_LKUP_TBL[service_index]);
(*p_num_uuid16)++;
}
/* if max number of UUIDs are stored and found one more */
else {
return BTM_EIR_MORE_16BITS_UUID_TYPE;
}
}
}
return BTM_EIR_COMPLETE_16BITS_UUID_TYPE;
}
/*******************************************************************************
**
** Function BTM_GetEirUuidList
**
** Description This function parses EIR and returns UUID list.
**
** Parameters p_eir - EIR
** uuid_size - LEN_UUID_16, LEN_UUID_32, LEN_UUID_128
** p_num_uuid - return number of UUID in found list
** p_uuid_list - return UUID list
** max_num_uuid - maximum number of UUID to be returned
**
** Returns 0 - if not found
** BTM_EIR_COMPLETE_16BITS_UUID_TYPE
** BTM_EIR_MORE_16BITS_UUID_TYPE
** BTM_EIR_COMPLETE_32BITS_UUID_TYPE
** BTM_EIR_MORE_32BITS_UUID_TYPE
** BTM_EIR_COMPLETE_128BITS_UUID_TYPE
** BTM_EIR_MORE_128BITS_UUID_TYPE
**
*******************************************************************************/
UINT8 BTM_GetEirUuidList( UINT8 *p_eir, UINT8 uuid_size, UINT8 *p_num_uuid,
UINT8 *p_uuid_list, UINT8 max_num_uuid)
{
UINT8 *p_uuid_data;
UINT8 type;
UINT8 yy, xx;
UINT16 *p_uuid16 = (UINT16 *)p_uuid_list;
UINT32 *p_uuid32 = (UINT32 *)p_uuid_list;
char buff[LEN_UUID_128 * 2 + 1];
p_uuid_data = btm_eir_get_uuid_list( p_eir, uuid_size, p_num_uuid, &type );
if ( p_uuid_data == NULL ) {
return 0x00;
}
if ( *p_num_uuid > max_num_uuid ) {
BTM_TRACE_WARNING("BTM_GetEirUuidList number of uuid in EIR = %d, size of uuid list = %d\n",
*p_num_uuid, max_num_uuid );
*p_num_uuid = max_num_uuid;
}
BTM_TRACE_DEBUG("BTM_GetEirUuidList type = %02X, number of uuid = %d\n", type, *p_num_uuid );
if ( uuid_size == LEN_UUID_16 ) {
for ( yy = 0; yy < *p_num_uuid; yy++ ) {
STREAM_TO_UINT16(*(p_uuid16 + yy), p_uuid_data);
BTM_TRACE_DEBUG(" 0x%04X\n", *(p_uuid16 + yy));
}
} else if ( uuid_size == LEN_UUID_32 ) {
for ( yy = 0; yy < *p_num_uuid; yy++ ) {
STREAM_TO_UINT32(*(p_uuid32 + yy), p_uuid_data);
BTM_TRACE_DEBUG(" 0x%08X\n", *(p_uuid32 + yy));
}
} else if ( uuid_size == LEN_UUID_128 ) {
for ( yy = 0; yy < *p_num_uuid; yy++ ) {
STREAM_TO_ARRAY16(p_uuid_list + yy * LEN_UUID_128, p_uuid_data);
for ( xx = 0; xx < LEN_UUID_128; xx++ ) {
sprintf(buff + xx * 2, "%02X", *(p_uuid_list + yy * LEN_UUID_128 + xx));
}
BTM_TRACE_DEBUG(" 0x%s\n", buff);
}
}
return type;
}
/*******************************************************************************
**
** Function btm_eir_get_uuid_list
**
** Description This function searches UUID list in EIR.
**
** Parameters p_eir - address of EIR
** uuid_size - size of UUID to find
** p_num_uuid - number of UUIDs found
** p_uuid_list_type - EIR data type
**
** Returns NULL - if UUID list with uuid_size is not found
** beginning of UUID list in EIR - otherwise
**
*******************************************************************************/
static UINT8 *btm_eir_get_uuid_list( UINT8 *p_eir, UINT8 uuid_size,
UINT8 *p_num_uuid, UINT8 *p_uuid_list_type )
{
UINT8 *p_uuid_data;
UINT8 complete_type, more_type;
UINT8 uuid_len;
switch ( uuid_size ) {
case LEN_UUID_16:
complete_type = BTM_EIR_COMPLETE_16BITS_UUID_TYPE;
more_type = BTM_EIR_MORE_16BITS_UUID_TYPE;
break;
case LEN_UUID_32:
complete_type = BTM_EIR_COMPLETE_32BITS_UUID_TYPE;
more_type = BTM_EIR_MORE_32BITS_UUID_TYPE;
break;
case LEN_UUID_128:
complete_type = BTM_EIR_COMPLETE_128BITS_UUID_TYPE;
more_type = BTM_EIR_MORE_128BITS_UUID_TYPE;
break;
default:
*p_num_uuid = 0;
return NULL;
break;
}
p_uuid_data = BTM_CheckEirData( p_eir, complete_type, &uuid_len );
if (p_uuid_data == NULL) {
p_uuid_data = BTM_CheckEirData( p_eir, more_type, &uuid_len );
*p_uuid_list_type = more_type;
} else {
*p_uuid_list_type = complete_type;
}
*p_num_uuid = uuid_len / uuid_size;
return p_uuid_data;
}
/*******************************************************************************
**
** Function btm_convert_uuid_to_uuid16
**
** Description This function converts UUID to UUID 16-bit.
**
** Parameters p_uuid - address of UUID
** uuid_size - size of UUID
**
** Returns 0 - if UUID cannot be converted to UUID 16-bit
** UUID 16-bit - otherwise
**
*******************************************************************************/
static UINT16 btm_convert_uuid_to_uuid16( UINT8 *p_uuid, UINT8 uuid_size )
{
static const UINT8 base_uuid[LEN_UUID_128] = {0xFB, 0x34, 0x9B, 0x5F, 0x80, 0x00, 0x00, 0x80,
0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
UINT16 uuid16 = 0;
UINT32 uuid32;
BOOLEAN is_base_uuid;
UINT8 xx;
switch (uuid_size) {
case LEN_UUID_16:
STREAM_TO_UINT16 (uuid16, p_uuid);
break;
case LEN_UUID_32:
STREAM_TO_UINT32 (uuid32, p_uuid);
if (uuid32 < 0x10000) {
uuid16 = (UINT16) uuid32;
}
break;
case LEN_UUID_128:
/* See if we can compress his UUID down to 16 or 32bit UUIDs */
is_base_uuid = TRUE;
for (xx = 0; xx < LEN_UUID_128 - 4; xx++) {
if (p_uuid[xx] != base_uuid[xx]) {
is_base_uuid = FALSE;
break;
}
}
if (is_base_uuid) {
if ((p_uuid[LEN_UUID_128 - 1] == 0) && (p_uuid[LEN_UUID_128 - 2] == 0)) {
p_uuid += (LEN_UUID_128 - 4);
STREAM_TO_UINT16(uuid16, p_uuid);
}
}
break;
default:
BTM_TRACE_WARNING("btm_convert_uuid_to_uuid16 invalid uuid size\n");
break;
}
return ( uuid16);
}
/*******************************************************************************
**
** Function btm_set_eir_uuid
**
** Description This function is called to store received UUID into inquiry result.
**
** Parameters p_eir - pointer of EIR significant part
** p_results - pointer of inquiry result
**
** Returns None
**
*******************************************************************************/
void btm_set_eir_uuid( UINT8 *p_eir, tBTM_INQ_RESULTS *p_results )
{
UINT8 *p_uuid_data;
UINT8 num_uuid;
UINT16 uuid16;
UINT8 yy;
UINT8 type = BTM_EIR_MORE_16BITS_UUID_TYPE;
p_uuid_data = btm_eir_get_uuid_list( p_eir, LEN_UUID_16, &num_uuid, &type );
if (type == BTM_EIR_COMPLETE_16BITS_UUID_TYPE) {
p_results->eir_complete_list = TRUE;
} else {
p_results->eir_complete_list = FALSE;
}
BTM_TRACE_API("btm_set_eir_uuid eir_complete_list=0x%02X\n", p_results->eir_complete_list);
if ( p_uuid_data ) {
for ( yy = 0; yy < num_uuid; yy++ ) {
STREAM_TO_UINT16(uuid16, p_uuid_data);
BTM_AddEirService( p_results->eir_uuid, uuid16 );
}
}
p_uuid_data = btm_eir_get_uuid_list( p_eir, LEN_UUID_32, &num_uuid, &type );
if ( p_uuid_data ) {
for ( yy = 0; yy < num_uuid; yy++ ) {
uuid16 = btm_convert_uuid_to_uuid16( p_uuid_data, LEN_UUID_32 );
p_uuid_data += LEN_UUID_32;
if ( uuid16 ) {
BTM_AddEirService( p_results->eir_uuid, uuid16 );
}
}
}
p_uuid_data = btm_eir_get_uuid_list( p_eir, LEN_UUID_128, &num_uuid, &type );
if ( p_uuid_data ) {
for ( yy = 0; yy < num_uuid; yy++ ) {
uuid16 = btm_convert_uuid_to_uuid16( p_uuid_data, LEN_UUID_128 );
p_uuid_data += LEN_UUID_128;
if ( uuid16 ) {
BTM_AddEirService( p_results->eir_uuid, uuid16 );
}
}
}
}
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