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3302 lines
137 KiB
C
3302 lines
137 KiB
C
/*
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* Copyright (C) 2014 BlueKitchen GmbH
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the copyright holders nor the names of
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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* 4. Any redistribution, use, or modification is done solely for
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* personal benefit and not for any commercial purpose or for
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* monetary gain.
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*
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* THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BLUEKITCHEN
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* GMBH OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* Please inquire about commercial licensing options at
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* contact@bluekitchen-gmbh.com
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*
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*/
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#define BTSTACK_FILE__ "hfp_ag.c"
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// *****************************************************************************
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//
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// HFP Audio Gateway (AG) unit
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//
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// *****************************************************************************
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#include "btstack_config.h"
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#include <stdint.h>
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#include <stdio.h>
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#include <string.h>
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#include "hci_cmd.h"
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#include "btstack_run_loop.h"
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#include "bluetooth_sdp.h"
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#include "hci.h"
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#include "btstack_memory.h"
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#include "hci_dump.h"
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#include "l2cap.h"
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#include "btstack_debug.h"
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#include "btstack_event.h"
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#include "classic/core.h"
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#include "classic/hfp.h"
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#include "classic/hfp_ag.h"
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#include "classic/hfp_gsm_model.h"
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#include "classic/sdp_client_rfcomm.h"
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#include "classic/sdp_server.h"
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#include "classic/sdp_util.h"
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// private prototypes
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static void hfp_ag_run_for_context(hfp_connection_t *hfp_connection);
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static void hfp_ag_hf_start_ringing_incoming(hfp_connection_t * hfp_connection);
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static void hfp_ag_hf_start_ringing_outgoing(hfp_connection_t * hfp_connection);
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static uint8_t hfp_ag_setup_audio_connection(hfp_connection_t * hfp_connection);
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// public prototypes
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hfp_generic_status_indicator_t * get_hfp_generic_status_indicators(void);
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int get_hfp_generic_status_indicators_nr(void);
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void set_hfp_generic_status_indicators(hfp_generic_status_indicator_t * indicators, int indicator_nr);
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void set_hfp_ag_indicators(hfp_ag_indicator_t * indicators, int indicator_nr);
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int get_hfp_ag_indicators_nr(hfp_connection_t * context);
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hfp_ag_indicator_t * get_hfp_ag_indicators(hfp_connection_t * context);
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#define HFP_SUBEVENT_INVALID 0xFFFF
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// const
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static const char hfp_ag_default_service_name[] = "Voice gateway";
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// globals
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// higher layer callbacks
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static btstack_packet_handler_t hfp_ag_callback;
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static bool (*hfp_ag_custom_call_sm_handler)(hfp_ag_call_event_t event);
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static btstack_packet_callback_registration_t hfp_ag_hci_event_callback_registration;
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static uint16_t hfp_ag_supported_features;
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// in-band ring tone is active on SLC if supported
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static bool hfp_ag_in_band_ring_tone_active;
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// codecs
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static uint8_t hfp_ag_codecs_nr;
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static uint8_t hfp_ag_codecs[HFP_MAX_NUM_CODECS];
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// AG indicators
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static int hfp_ag_indicators_nr;
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static hfp_ag_indicator_t hfp_ag_indicators[HFP_MAX_NUM_INDICATORS];
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// generic status indicators
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static int hfp_ag_generic_status_indicators_nr;
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static hfp_generic_status_indicator_t hfp_ag_generic_status_indicators[HFP_MAX_NUM_INDICATORS];
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static int hfp_ag_call_hold_services_nr;
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static char * hfp_ag_call_hold_services[6];
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static hfp_response_and_hold_state_t hfp_ag_response_and_hold_state;
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static bool hfp_ag_response_and_hold_active = false;
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// Subscriber information entries
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static hfp_phone_number_t * hfp_ag_subscriber_numbers;
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static int hfp_ag_subscriber_numbers_count;
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// call state
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static btstack_timer_source_t hfp_ag_ring_timeout;
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// code
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static int hfp_ag_get_ag_indicators_nr(hfp_connection_t * hfp_connection){
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if (hfp_connection->ag_indicators_nr != hfp_ag_indicators_nr){
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hfp_connection->ag_indicators_nr = hfp_ag_indicators_nr;
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(void)memcpy(hfp_connection->ag_indicators, hfp_ag_indicators,
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hfp_ag_indicators_nr * sizeof(hfp_ag_indicator_t));
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}
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return hfp_connection->ag_indicators_nr;
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}
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hfp_ag_indicator_t * hfp_ag_get_ag_indicators(hfp_connection_t * hfp_connection){
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// TODO: save only value, and value changed in the hfp_connection?
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if (hfp_connection->ag_indicators_nr != hfp_ag_indicators_nr){
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hfp_connection->ag_indicators_nr = hfp_ag_indicators_nr;
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(void)memcpy(hfp_connection->ag_indicators, hfp_ag_indicators,
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hfp_ag_indicators_nr * sizeof(hfp_ag_indicator_t));
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}
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return (hfp_ag_indicator_t *)&(hfp_connection->ag_indicators);
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}
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static hfp_ag_indicator_t * get_ag_indicator_for_name(const char * name){
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int i;
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for (i = 0; i < hfp_ag_indicators_nr; i++){
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if (strcmp(hfp_ag_indicators[i].name, name) == 0){
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return &hfp_ag_indicators[i];
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}
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}
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return NULL;
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}
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static int get_ag_indicator_index_for_name(const char * name){
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int i;
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for (i = 0; i < hfp_ag_indicators_nr; i++){
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if (strcmp(hfp_ag_indicators[i].name, name) == 0){
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return i;
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}
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}
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return -1;
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}
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static hfp_connection_t * get_hfp_ag_connection_context_for_acl_handle(uint16_t handle){
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btstack_linked_list_iterator_t it;
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btstack_linked_list_iterator_init(&it, hfp_get_connections());
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while (btstack_linked_list_iterator_has_next(&it)){
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hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it);
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if (hfp_connection->acl_handle != handle) continue;
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if (hfp_connection->local_role != HFP_ROLE_AG) continue;
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return hfp_connection;
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}
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return NULL;
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}
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static bool has_in_band_ring_tone(void){
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return get_bit(hfp_ag_supported_features, HFP_AGSF_IN_BAND_RING_TONE) != 0;
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}
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static int use_in_band_tone(hfp_connection_t *hfp_connection) {
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return hfp_connection->ag_in_band_ring_tone_active ? 1 : 0;
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}
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static int has_codec_negotiation_feature(hfp_connection_t * hfp_connection){
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int hf = get_bit(hfp_connection->remote_supported_features, HFP_HFSF_CODEC_NEGOTIATION);
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int ag = get_bit(hfp_ag_supported_features, HFP_AGSF_CODEC_NEGOTIATION);
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return hf && ag;
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}
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static int has_call_waiting_and_3way_calling_feature(hfp_connection_t * hfp_connection){
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int hf = get_bit(hfp_connection->remote_supported_features, HFP_HFSF_THREE_WAY_CALLING);
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int ag = get_bit(hfp_ag_supported_features, HFP_AGSF_THREE_WAY_CALLING);
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return hf && ag;
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}
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static int has_hf_indicators_feature(hfp_connection_t * hfp_connection){
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int hf = get_bit(hfp_connection->remote_supported_features, HFP_HFSF_HF_INDICATORS);
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int ag = get_bit(hfp_ag_supported_features, HFP_AGSF_HF_INDICATORS);
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return hf && ag;
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}
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/* unsolicited responses */
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static int hfp_ag_send_change_in_band_ring_tone_setting_cmd(hfp_connection_t * hfp_connection){
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char buffer[40];
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snprintf(buffer, sizeof(buffer), "\r\n%s: %d\r\n",
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HFP_CHANGE_IN_BAND_RING_TONE_SETTING, use_in_band_tone(hfp_connection));
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buffer[sizeof(buffer) - 1] = 0;
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return send_str_over_rfcomm(hfp_connection->rfcomm_cid, buffer);
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}
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static int hfp_ag_exchange_supported_features_cmd(uint16_t cid){
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char buffer[40];
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snprintf(buffer, sizeof(buffer), "\r\n%s:%d\r\n\r\nOK\r\n",
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HFP_SUPPORTED_FEATURES, hfp_ag_supported_features);
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buffer[sizeof(buffer) - 1] = 0;
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return send_str_over_rfcomm(cid, buffer);
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}
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static int hfp_ag_send_ok(uint16_t cid){
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char buffer[10];
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snprintf(buffer, sizeof(buffer), "\r\nOK\r\n");
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buffer[sizeof(buffer) - 1] = 0;
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return send_str_over_rfcomm(cid, buffer);
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}
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static int hfp_ag_send_ring(uint16_t cid){
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return send_str_over_rfcomm(cid, (char *) "\r\nRING\r\n");
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}
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static int hfp_ag_send_no_carrier(uint16_t cid){
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char buffer[15];
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snprintf(buffer, sizeof(buffer), "\r\nNO CARRIER\r\n");
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buffer[sizeof(buffer) - 1] = 0;
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return send_str_over_rfcomm(cid, buffer);
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}
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static int hfp_ag_send_clip(uint16_t cid){
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char buffer[50];
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snprintf(buffer, sizeof(buffer), "\r\n%s: \"%s\",%u\r\n", HFP_ENABLE_CLIP,
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hfp_gsm_clip_number(), hfp_gsm_clip_type());
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buffer[sizeof(buffer) - 1] = 0;
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return send_str_over_rfcomm(cid, buffer);
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}
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static int hfp_send_subscriber_number_cmd(uint16_t cid, uint8_t type, const char * number){
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char buffer[50];
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snprintf(buffer, sizeof(buffer), "\r\n%s: ,\"%s\",%u, , \r\n",
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HFP_SUBSCRIBER_NUMBER_INFORMATION, number, type);
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buffer[sizeof(buffer) - 1] = 0;
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return send_str_over_rfcomm(cid, buffer);
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}
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static int hfp_ag_send_phone_number_for_voice_tag_cmd(uint16_t cid){
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char buffer[50];
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snprintf(buffer, sizeof(buffer), "\r\n%s: %s\r\n",
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HFP_PHONE_NUMBER_FOR_VOICE_TAG, hfp_gsm_clip_number());
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buffer[sizeof(buffer) - 1] = 0;
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return send_str_over_rfcomm(cid, buffer);
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}
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static int hfp_ag_send_call_waiting_notification(uint16_t cid){
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char buffer[50];
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snprintf(buffer, sizeof(buffer), "\r\n%s: \"%s\",%u\r\n",
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HFP_ENABLE_CALL_WAITING_NOTIFICATION, hfp_gsm_clip_number(),
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hfp_gsm_clip_type());
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buffer[sizeof(buffer) - 1] = 0;
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return send_str_over_rfcomm(cid, buffer);
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}
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static int hfp_ag_send_error(uint16_t cid){
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char buffer[10];
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snprintf(buffer, sizeof(buffer), "\r\nERROR\r\n");
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buffer[sizeof(buffer) - 1] = 0;
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return send_str_over_rfcomm(cid, buffer);
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}
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static int hfp_ag_send_report_extended_audio_gateway_error(uint16_t cid, uint8_t error){
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char buffer[20];
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snprintf(buffer, sizeof(buffer), "\r\n%s=%d\r\n",
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HFP_EXTENDED_AUDIO_GATEWAY_ERROR, error);
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buffer[sizeof(buffer) - 1] = 0;
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return send_str_over_rfcomm(cid, buffer);
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}
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// get size for indicator string
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static int hfp_ag_indicators_string_size(hfp_connection_t * hfp_connection, int i){
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// template: ("$NAME",($MIN,$MAX))
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return 8 + (int) strlen(hfp_ag_get_ag_indicators(hfp_connection)[i].name)
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+ string_len_for_uint32(hfp_ag_get_ag_indicators(hfp_connection)[i].min_range)
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+ string_len_for_uint32(hfp_ag_get_ag_indicators(hfp_connection)[i].min_range);
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}
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// store indicator
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static void hfp_ag_indicators_string_store(hfp_connection_t * hfp_connection, int i, uint8_t * buffer, uint16_t buffer_size){
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snprintf((char *)buffer, buffer_size, "(\"%s\",(%d,%d)),",
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hfp_ag_get_ag_indicators(hfp_connection)[i].name,
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hfp_ag_get_ag_indicators(hfp_connection)[i].min_range,
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hfp_ag_get_ag_indicators(hfp_connection)[i].max_range);
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((char *)buffer)[buffer_size - 1] = 0;
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}
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// structure: header [indicator [comma indicator]] footer
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static int hfp_ag_indicators_cmd_generator_num_segments(hfp_connection_t * hfp_connection){
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int num_indicators = hfp_ag_get_ag_indicators_nr(hfp_connection);
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if (!num_indicators) return 2;
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return 3 + ((num_indicators-1) * 2);
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}
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// get size of individual segment for hfp_ag_retrieve_indicators_cmd
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static int hfp_ag_indicators_cmd_generator_get_segment_len(hfp_connection_t * hfp_connection, int index){
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if (index == 0) {
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return (uint16_t) strlen(HFP_INDICATOR) + 3; // "\n\r%s:""
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}
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index--;
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int num_indicators = hfp_ag_get_ag_indicators_nr(hfp_connection);
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int indicator_index = index >> 1;
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if ((index & 1) == 0){
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return hfp_ag_indicators_string_size(hfp_connection, indicator_index);
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}
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if (indicator_index == (num_indicators - 1)){
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return 8; // "\r\n\r\nOK\r\n"
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}
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return 1; // comma
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}
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static void hfp_ag_indicators_cmd_generator_store_segment(hfp_connection_t * hfp_connection, int index, uint8_t * buffer, uint16_t buffer_size){
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if (index == 0){
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*buffer++ = '\r';
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*buffer++ = '\n';
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int len = (uint16_t) strlen(HFP_INDICATOR);
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(void)memcpy(buffer, HFP_INDICATOR, len);
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buffer += len;
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*buffer++ = ':';
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return;
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}
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index--;
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int num_indicators = hfp_ag_get_ag_indicators_nr(hfp_connection);
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int indicator_index = index >> 1;
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if ((index & 1) == 0){
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hfp_ag_indicators_string_store(hfp_connection, indicator_index, buffer, buffer_size);
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return;
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}
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if (indicator_index == (num_indicators-1)){
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(void)memcpy(buffer, "\r\n\r\nOK\r\n", 8);
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return;
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}
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*buffer = ',';
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}
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static int hfp_ag_generic_indicators_join(char * buffer, int buffer_size){
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if (buffer_size < (hfp_ag_indicators_nr * 3)) return 0;
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int i;
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int offset = 0;
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for (i = 0; i < (hfp_ag_generic_status_indicators_nr - 1); i++) {
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offset += snprintf(buffer+offset, buffer_size-offset, "%d,", hfp_ag_generic_status_indicators[i].uuid);
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}
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if (i < hfp_ag_generic_status_indicators_nr){
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offset += snprintf(buffer+offset, buffer_size-offset, "%d", hfp_ag_generic_status_indicators[i].uuid);
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}
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return offset;
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}
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static int hfp_ag_generic_indicators_initial_status_join(char * buffer, int buffer_size){
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if (buffer_size < (hfp_ag_generic_status_indicators_nr * 3)) return 0;
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int i;
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int offset = 0;
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for (i = 0; i < hfp_ag_generic_status_indicators_nr; i++) {
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offset += snprintf(buffer+offset, buffer_size-offset, "\r\n%s:%d,%d\r\n", HFP_GENERIC_STATUS_INDICATOR, hfp_ag_generic_status_indicators[i].uuid, hfp_ag_generic_status_indicators[i].state);
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}
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return offset;
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}
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static int hfp_ag_indicators_status_join(char * buffer, int buffer_size){
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if (buffer_size < (hfp_ag_indicators_nr * 3)) return 0;
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int i;
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int offset = 0;
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for (i = 0; i < (hfp_ag_indicators_nr-1); i++) {
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offset += snprintf(buffer+offset, buffer_size-offset, "%d,", hfp_ag_indicators[i].status);
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}
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if (i<hfp_ag_indicators_nr){
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offset += snprintf(buffer+offset, buffer_size-offset, "%d", hfp_ag_indicators[i].status);
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}
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return offset;
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}
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static int hfp_ag_call_services_join(char * buffer, int buffer_size){
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if (buffer_size < (hfp_ag_call_hold_services_nr * 3)) return 0;
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int i;
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int offset = snprintf(buffer, buffer_size, "(");
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for (i = 0; i < (hfp_ag_call_hold_services_nr-1); i++) {
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offset += snprintf(buffer+offset, buffer_size-offset, "%s,", hfp_ag_call_hold_services[i]);
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}
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if (i<hfp_ag_call_hold_services_nr){
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offset += snprintf(buffer+offset, buffer_size-offset, "%s)", hfp_ag_call_hold_services[i]);
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}
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return offset;
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}
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static int hfp_ag_send_cmd_via_generator(uint16_t cid, hfp_connection_t * hfp_connection,
|
||
int start_segment, int num_segments,
|
||
int (*get_segment_len)(hfp_connection_t * hfp_connection, int segment),
|
||
void (*store_segment) (hfp_connection_t * hfp_connection, int segment, uint8_t * buffer, uint16_t buffer_size)){
|
||
|
||
// assumes: can send now == true
|
||
// assumes: num segments > 0
|
||
// assumes: individual segments are smaller than MTU
|
||
rfcomm_reserve_packet_buffer();
|
||
int mtu = rfcomm_get_max_frame_size(cid);
|
||
uint8_t * data = rfcomm_get_outgoing_buffer();
|
||
int offset = 0;
|
||
int segment = start_segment;
|
||
while (segment < num_segments){
|
||
int segment_len = get_segment_len(hfp_connection, segment);
|
||
if ((offset + segment_len + 1) > mtu) break;
|
||
// append segment. As it appends a '\0', we provide a buffer one byte larger
|
||
store_segment(hfp_connection, segment, data+offset, segment_len + 1);
|
||
offset += segment_len;
|
||
segment++;
|
||
}
|
||
rfcomm_send_prepared(cid, offset);
|
||
#ifdef ENABLE_HFP_AT_MESSAGES
|
||
hfp_emit_string_event(hfp_connection, HFP_SUBEVENT_AT_MESSAGE_SENT, (char *) data);
|
||
#endif
|
||
return segment;
|
||
}
|
||
|
||
// returns next segment to store
|
||
static int hfp_ag_send_retrieve_indicators_cmd_via_generator(uint16_t cid, hfp_connection_t * hfp_connection, int start_segment){
|
||
int num_segments = hfp_ag_indicators_cmd_generator_num_segments(hfp_connection);
|
||
return hfp_ag_send_cmd_via_generator(cid, hfp_connection, start_segment, num_segments,
|
||
hfp_ag_indicators_cmd_generator_get_segment_len,
|
||
hfp_ag_indicators_cmd_generator_store_segment);
|
||
}
|
||
|
||
static int hfp_ag_send_retrieve_indicators_status_cmd(uint16_t cid){
|
||
char buffer[40];
|
||
const int size = sizeof(buffer);
|
||
int offset = snprintf(buffer, size, "\r\n%s:", HFP_INDICATOR);
|
||
offset += hfp_ag_indicators_status_join(buffer+offset, size-offset-9);
|
||
offset += snprintf(buffer+offset, size-offset, "\r\n\r\nOK\r\n");
|
||
return send_str_over_rfcomm(cid, buffer);
|
||
}
|
||
|
||
static int hfp_ag_send_retrieve_can_hold_call_cmd(uint16_t cid){
|
||
char buffer[40];
|
||
const int size = sizeof(buffer);
|
||
int offset = snprintf(buffer, size, "\r\n%s:", HFP_SUPPORT_CALL_HOLD_AND_MULTIPARTY_SERVICES);
|
||
offset += hfp_ag_call_services_join(buffer+offset, size-offset-9);
|
||
offset += snprintf(buffer+offset, size-offset, "\r\n\r\nOK\r\n");
|
||
return send_str_over_rfcomm(cid, buffer);
|
||
}
|
||
|
||
|
||
static int hfp_ag_send_list_supported_generic_status_indicators_cmd(uint16_t cid){
|
||
return hfp_ag_send_ok(cid);
|
||
}
|
||
|
||
static int hfp_ag_send_retrieve_supported_generic_status_indicators_cmd(uint16_t cid){
|
||
char buffer[40];
|
||
const int size = sizeof(buffer);
|
||
int offset = snprintf(buffer, size, "\r\n%s:(", HFP_GENERIC_STATUS_INDICATOR);
|
||
offset += hfp_ag_generic_indicators_join(buffer + offset, size - offset - 10);
|
||
offset += snprintf(buffer+offset, size-offset, ")\r\n\r\nOK\r\n");
|
||
return send_str_over_rfcomm(cid, buffer);
|
||
}
|
||
|
||
static int hfp_ag_send_retrieve_initital_supported_generic_status_indicators_cmd(uint16_t cid){
|
||
char buffer[40];
|
||
int offset = hfp_ag_generic_indicators_initial_status_join(buffer, sizeof(buffer) - 7);
|
||
snprintf(buffer+offset, sizeof(buffer)-offset, "\r\nOK\r\n");
|
||
return send_str_over_rfcomm(cid, buffer);
|
||
}
|
||
|
||
static int hfp_ag_send_transfer_ag_indicators_status_cmd(uint16_t cid, hfp_ag_indicator_t * indicator){
|
||
char buffer[20];
|
||
snprintf(buffer, sizeof(buffer), "\r\n%s:%d,%d\r\n",
|
||
HFP_TRANSFER_AG_INDICATOR_STATUS, indicator->index,
|
||
indicator->status);
|
||
buffer[sizeof(buffer) - 1] = 0;
|
||
return send_str_over_rfcomm(cid, buffer);
|
||
}
|
||
|
||
static int hfp_ag_send_report_network_operator_name_cmd(uint16_t cid, hfp_network_opearator_t op){
|
||
char buffer[41];
|
||
if (strlen(op.name) == 0){
|
||
snprintf(buffer, sizeof(buffer), "\r\n%s:%d,,\r\n\r\nOK\r\n", HFP_QUERY_OPERATOR_SELECTION, op.mode);
|
||
} else {
|
||
int offset = snprintf(buffer, sizeof(buffer), "\r\n%s:%d,%d,", HFP_QUERY_OPERATOR_SELECTION, op.mode, op.format);
|
||
offset += snprintf(buffer+offset, 16, "%s", op.name);
|
||
snprintf(buffer+offset, sizeof(buffer)-offset, "\r\n\r\nOK\r\n");
|
||
}
|
||
return send_str_over_rfcomm(cid, buffer);
|
||
}
|
||
|
||
static inline int hfp_ag_send_cmd_with_space_and_int(uint16_t cid, const char * cmd, uint8_t value){
|
||
char buffer[30];
|
||
snprintf(buffer, sizeof(buffer), "\r\n%s: %d\r\n", cmd, value);
|
||
return send_str_over_rfcomm(cid, buffer);
|
||
}
|
||
|
||
|
||
static inline int hfp_ag_send_cmd_with_int(uint16_t cid, const char * cmd, uint8_t value){
|
||
char buffer[30];
|
||
snprintf(buffer, sizeof(buffer), "\r\n%s:%d\r\n", cmd, value);
|
||
return send_str_over_rfcomm(cid, buffer);
|
||
}
|
||
|
||
static int hfp_ag_send_suggest_codec_cmd(uint16_t cid, uint8_t codec){
|
||
return hfp_ag_send_cmd_with_int(cid, HFP_CONFIRM_COMMON_CODEC, codec);
|
||
}
|
||
|
||
static int hfp_ag_send_set_speaker_gain_cmd(uint16_t cid, uint8_t gain){
|
||
return hfp_ag_send_cmd_with_int(cid, HFP_SET_SPEAKER_GAIN, gain);
|
||
}
|
||
|
||
static int hfp_ag_send_set_microphone_gain_cmd(uint16_t cid, uint8_t gain){
|
||
return hfp_ag_send_cmd_with_int(cid, HFP_SET_MICROPHONE_GAIN, gain);
|
||
}
|
||
|
||
static int hfp_ag_send_set_response_and_hold(uint16_t cid, int state){
|
||
return hfp_ag_send_cmd_with_space_and_int(cid, HFP_RESPONSE_AND_HOLD, state);
|
||
}
|
||
|
||
static int hfp_ag_send_enhanced_voice_recognition_state_cmd(hfp_connection_t * hfp_connection){
|
||
char buffer[30];
|
||
uint8_t evra_enabled = hfp_connection->enhanced_voice_recognition_enabled ? 1 : 0;
|
||
snprintf(buffer, sizeof(buffer), "\r\n%s: %d,%d\r\n", HFP_ACTIVATE_VOICE_RECOGNITION, evra_enabled, hfp_connection->ag_vra_state);
|
||
return send_str_over_rfcomm(hfp_connection->rfcomm_cid, buffer);
|
||
}
|
||
|
||
static int hfp_ag_send_voice_recognition_cmd(hfp_connection_t * hfp_connection, uint8_t activate_voice_recognition){
|
||
char buffer[30];
|
||
if (hfp_connection->enhanced_voice_recognition_enabled){
|
||
snprintf(buffer, sizeof(buffer), "\r\n%s: %d,%d\r\n", HFP_ACTIVATE_VOICE_RECOGNITION, activate_voice_recognition, hfp_connection->ag_vra_state);
|
||
} else {
|
||
snprintf(buffer, sizeof(buffer), "\r\n%s: %d\r\n", HFP_ACTIVATE_VOICE_RECOGNITION, activate_voice_recognition);
|
||
}
|
||
return send_str_over_rfcomm(hfp_connection->rfcomm_cid, buffer);
|
||
}
|
||
|
||
static int hfp_ag_send_enhanced_voice_recognition_msg_cmd(hfp_connection_t * hfp_connection){
|
||
char buffer[HFP_VR_TEXT_HEADER_SIZE + HFP_MAX_VR_TEXT_SIZE];
|
||
snprintf(buffer, sizeof(buffer), "\r\n%s: 1,%d,%X,%d,%d,\"%s\"\r\n", HFP_ACTIVATE_VOICE_RECOGNITION,
|
||
hfp_connection->ag_vra_state,
|
||
hfp_connection->ag_msg.text_id,
|
||
hfp_connection->ag_msg.text_type,
|
||
hfp_connection->ag_msg.text_operation,
|
||
hfp_connection->ag_msg.text);
|
||
return send_str_over_rfcomm(hfp_connection->rfcomm_cid, buffer);
|
||
}
|
||
|
||
static uint8_t hfp_ag_suggest_codec(hfp_connection_t *hfp_connection){
|
||
if (hfp_connection->sco_for_msbc_failed) return HFP_CODEC_CVSD;
|
||
|
||
#ifdef ENABLE_HFP_SUPER_WIDE_BAND_SPEECH
|
||
if (hfp_supports_codec(HFP_CODEC_LC3_SWB, hfp_ag_codecs_nr, hfp_ag_codecs)){
|
||
if (hfp_supports_codec(HFP_CODEC_LC3_SWB, hfp_connection->remote_codecs_nr, hfp_connection->remote_codecs)){
|
||
return HFP_CODEC_LC3_SWB;
|
||
}
|
||
}
|
||
#endif
|
||
|
||
#ifdef ENABLE_HFP_WIDE_BAND_SPEECH
|
||
if (hfp_supports_codec(HFP_CODEC_MSBC, hfp_ag_codecs_nr, hfp_ag_codecs)){
|
||
if (hfp_supports_codec(HFP_CODEC_MSBC, hfp_connection->remote_codecs_nr, hfp_connection->remote_codecs)){
|
||
return HFP_CODEC_MSBC;
|
||
}
|
||
}
|
||
#endif
|
||
|
||
return HFP_CODEC_CVSD;
|
||
}
|
||
|
||
/* state machines */
|
||
|
||
static uint8_t hfp_ag_esco_s4_supported(hfp_connection_t * hfp_connection){
|
||
return (hfp_connection->remote_supported_features & (1<<HFP_HFSF_ESCO_S4)) && (hfp_ag_supported_features & (1 << HFP_AGSF_ESCO_S4));
|
||
}
|
||
|
||
static int codecs_exchange_state_machine(hfp_connection_t * hfp_connection){
|
||
/* events ( == commands):
|
||
HFP_CMD_AVAILABLE_CODECS == received AT+BAC with list of codecs
|
||
HFP_CMD_TRIGGER_CODEC_CONNECTION_SETUP:
|
||
hf_trigger_codec_connection_setup == received BCC
|
||
ag_trigger_codec_connection_setup == received from AG to send BCS
|
||
HFP_CMD_HF_CONFIRMED_CODEC == received AT+BCS
|
||
*/
|
||
switch (hfp_connection->codecs_state){
|
||
case HFP_CODECS_EXCHANGED:
|
||
if (hfp_connection->command == HFP_CMD_AVAILABLE_CODECS){
|
||
hfp_ag_send_ok(hfp_connection->rfcomm_cid);
|
||
return 1;
|
||
}
|
||
break;
|
||
|
||
case HFP_CODECS_RECEIVED_TRIGGER_CODEC_EXCHANGE:
|
||
case HFP_CODECS_AG_RESEND_COMMON_CODEC:
|
||
hfp_connection->ag_send_common_codec = true;
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
|
||
if (hfp_connection->ag_send_common_codec){
|
||
hfp_connection->ag_send_common_codec = false;
|
||
hfp_connection->codecs_state = HFP_CODECS_AG_SENT_COMMON_CODEC;
|
||
hfp_connection->suggested_codec = hfp_ag_suggest_codec(hfp_connection);
|
||
hfp_ag_send_suggest_codec_cmd(hfp_connection->rfcomm_cid, hfp_connection->suggested_codec);
|
||
return 1;
|
||
}
|
||
|
||
switch (hfp_connection->command){
|
||
case HFP_CMD_AVAILABLE_CODECS:
|
||
if (hfp_connection->state < HFP_SERVICE_LEVEL_CONNECTION_ESTABLISHED){
|
||
hfp_connection->codecs_state = HFP_CODECS_RECEIVED_LIST;
|
||
hfp_ag_send_ok(hfp_connection->rfcomm_cid);
|
||
return 1;
|
||
}
|
||
|
||
switch (hfp_connection->codecs_state){
|
||
case HFP_CODECS_AG_SENT_COMMON_CODEC:
|
||
hfp_connection->codecs_state = HFP_CODECS_AG_RESEND_COMMON_CODEC;
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
hfp_ag_send_ok(hfp_connection->rfcomm_cid);
|
||
return 1;
|
||
|
||
case HFP_CMD_TRIGGER_CODEC_CONNECTION_SETUP:
|
||
hfp_connection->codecs_state = HFP_CODECS_RECEIVED_TRIGGER_CODEC_EXCHANGE;
|
||
hfp_connection->establish_audio_connection = 1;
|
||
hfp_ag_send_ok(hfp_connection->rfcomm_cid);
|
||
return 1;
|
||
|
||
case HFP_CMD_HF_CONFIRMED_CODEC:
|
||
if (hfp_connection->codec_confirmed != hfp_connection->suggested_codec){
|
||
hfp_connection->codecs_state = HFP_CODECS_ERROR;
|
||
hfp_ag_send_error(hfp_connection->rfcomm_cid);
|
||
return 1;
|
||
}
|
||
hfp_connection->negotiated_codec = hfp_connection->codec_confirmed;
|
||
hfp_connection->codecs_state = HFP_CODECS_EXCHANGED;
|
||
log_info("hfp: codec confirmed: %s", (hfp_connection->negotiated_codec == HFP_CODEC_MSBC) ? "mSBC" : "CVSD");
|
||
hfp_ag_send_ok(hfp_connection->rfcomm_cid);
|
||
// now, pick link settings
|
||
hfp_init_link_settings(hfp_connection, hfp_ag_esco_s4_supported(hfp_connection));
|
||
// configure SBC coded if needed
|
||
hfp_prepare_for_sco(hfp_connection);
|
||
return 1;
|
||
default:
|
||
break;
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
static void hfp_ag_slc_established(hfp_connection_t * hfp_connection){
|
||
hfp_connection->state = HFP_SERVICE_LEVEL_CONNECTION_ESTABLISHED;
|
||
hfp_emit_slc_connection_event(hfp_connection->local_role, 0, hfp_connection->acl_handle, hfp_connection->remote_addr);
|
||
|
||
// in-band ring tone is active if supported
|
||
hfp_connection->ag_in_band_ring_tone_active = has_in_band_ring_tone();
|
||
|
||
// HFP 4.35: "When [...] a new Service Level Connection is established all indicators are activated by default."
|
||
uint16_t i;
|
||
for (i=0;i<hfp_connection->ag_indicators_nr;i++){
|
||
hfp_connection->ag_indicators[i].enabled = 1;
|
||
}
|
||
|
||
// if active call exist, set per-hfp_connection state active, too (when audio is on)
|
||
if (hfp_gsm_call_status() == HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT){
|
||
hfp_connection->call_state = HFP_CALL_W4_AUDIO_CONNECTION_FOR_ACTIVE;
|
||
}
|
||
// if AG is ringing, also start ringing on the HF
|
||
if (hfp_gsm_call_status() == HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS){
|
||
switch (hfp_gsm_callsetup_status()){
|
||
case HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS:
|
||
hfp_ag_hf_start_ringing_incoming(hfp_connection);
|
||
break;
|
||
case HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_ALERTING_STATE:
|
||
hfp_ag_hf_start_ringing_outgoing(hfp_connection);
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
static int hfp_ag_run_for_context_service_level_connection(hfp_connection_t * hfp_connection){
|
||
// log_info("hfp_ag_run_for_context_service_level_connection state %u, command %u", hfp_connection->state, hfp_connection->command);
|
||
if (hfp_connection->state >= HFP_SERVICE_LEVEL_CONNECTION_ESTABLISHED) return 0;
|
||
int sent = 0;
|
||
switch(hfp_connection->command){
|
||
case HFP_CMD_SUPPORTED_FEATURES:
|
||
switch(hfp_connection->state){
|
||
case HFP_W4_EXCHANGE_SUPPORTED_FEATURES:
|
||
case HFP_EXCHANGE_SUPPORTED_FEATURES:
|
||
hfp_hf_drop_mSBC_if_eSCO_not_supported(hfp_ag_codecs, &hfp_ag_codecs_nr);
|
||
if (has_codec_negotiation_feature(hfp_connection)){
|
||
hfp_connection->state = HFP_W4_NOTIFY_ON_CODECS;
|
||
} else {
|
||
hfp_connection->state = HFP_W4_RETRIEVE_INDICATORS;
|
||
}
|
||
hfp_ag_exchange_supported_features_cmd(hfp_connection->rfcomm_cid);
|
||
return 1;
|
||
default:
|
||
break;
|
||
}
|
||
break;
|
||
case HFP_CMD_AVAILABLE_CODECS:
|
||
sent = codecs_exchange_state_machine(hfp_connection);
|
||
if (hfp_connection->codecs_state == HFP_CODECS_RECEIVED_LIST){
|
||
hfp_connection->state = HFP_W4_RETRIEVE_INDICATORS;
|
||
}
|
||
return sent;
|
||
|
||
case HFP_CMD_RETRIEVE_AG_INDICATORS:
|
||
if (hfp_connection->state == HFP_W4_RETRIEVE_INDICATORS) {
|
||
// HF requested AG Indicators and we did expect it
|
||
hfp_connection->send_ag_indicators_segment = 0;
|
||
hfp_connection->state = HFP_RETRIEVE_INDICATORS;
|
||
// continue below in state switch
|
||
}
|
||
break;
|
||
|
||
case HFP_CMD_RETRIEVE_AG_INDICATORS_STATUS:
|
||
if (hfp_connection->state != HFP_W4_RETRIEVE_INDICATORS_STATUS) break;
|
||
hfp_connection->state = HFP_W4_ENABLE_INDICATORS_STATUS_UPDATE;
|
||
hfp_ag_send_retrieve_indicators_status_cmd(hfp_connection->rfcomm_cid);
|
||
return 1;
|
||
|
||
case HFP_CMD_ENABLE_INDICATOR_STATUS_UPDATE:
|
||
if (hfp_connection->state != HFP_W4_ENABLE_INDICATORS_STATUS_UPDATE) break;
|
||
if (has_call_waiting_and_3way_calling_feature(hfp_connection)){
|
||
hfp_connection->state = HFP_W4_RETRIEVE_CAN_HOLD_CALL;
|
||
} else if (has_hf_indicators_feature(hfp_connection)){
|
||
hfp_connection->state = HFP_W4_LIST_GENERIC_STATUS_INDICATORS;
|
||
} else {
|
||
hfp_ag_slc_established(hfp_connection);
|
||
}
|
||
hfp_ag_send_ok(hfp_connection->rfcomm_cid);
|
||
return 1;
|
||
|
||
case HFP_CMD_SUPPORT_CALL_HOLD_AND_MULTIPARTY_SERVICES:
|
||
if (hfp_connection->state != HFP_W4_RETRIEVE_CAN_HOLD_CALL) break;
|
||
if (has_hf_indicators_feature(hfp_connection)){
|
||
hfp_connection->state = HFP_W4_LIST_GENERIC_STATUS_INDICATORS;
|
||
}
|
||
hfp_ag_send_retrieve_can_hold_call_cmd(hfp_connection->rfcomm_cid);
|
||
if (!has_hf_indicators_feature(hfp_connection)){
|
||
hfp_ag_slc_established(hfp_connection);
|
||
}
|
||
return 1;
|
||
|
||
case HFP_CMD_LIST_GENERIC_STATUS_INDICATORS:
|
||
if (hfp_connection->state != HFP_W4_LIST_GENERIC_STATUS_INDICATORS) break;
|
||
hfp_connection->state = HFP_W4_RETRIEVE_GENERIC_STATUS_INDICATORS;
|
||
hfp_ag_send_list_supported_generic_status_indicators_cmd(hfp_connection->rfcomm_cid);
|
||
return 1;
|
||
|
||
case HFP_CMD_RETRIEVE_GENERIC_STATUS_INDICATORS:
|
||
if (hfp_connection->state != HFP_W4_RETRIEVE_GENERIC_STATUS_INDICATORS) break;
|
||
hfp_connection->state = HFP_W4_RETRIEVE_INITITAL_STATE_GENERIC_STATUS_INDICATORS;
|
||
hfp_ag_send_retrieve_supported_generic_status_indicators_cmd(hfp_connection->rfcomm_cid);
|
||
return 1;
|
||
|
||
case HFP_CMD_RETRIEVE_GENERIC_STATUS_INDICATORS_STATE:
|
||
if (hfp_connection->state != HFP_W4_RETRIEVE_INITITAL_STATE_GENERIC_STATUS_INDICATORS) break;
|
||
hfp_ag_send_retrieve_initital_supported_generic_status_indicators_cmd(hfp_connection->rfcomm_cid);
|
||
hfp_ag_slc_established(hfp_connection);
|
||
return 1;
|
||
default:
|
||
break;
|
||
}
|
||
|
||
switch (hfp_connection->state){
|
||
case HFP_RETRIEVE_INDICATORS: {
|
||
int next_segment = hfp_ag_send_retrieve_indicators_cmd_via_generator(hfp_connection->rfcomm_cid, hfp_connection, hfp_connection->send_ag_indicators_segment);
|
||
int num_segments = hfp_ag_indicators_cmd_generator_num_segments(hfp_connection);
|
||
log_info("HFP_CMD_RETRIEVE_AG_INDICATORS next segment %u, num_segments %u", next_segment, num_segments);
|
||
if (next_segment < num_segments){
|
||
// prepare sending of next segment
|
||
hfp_connection->send_ag_indicators_segment = next_segment;
|
||
log_info("HFP_CMD_RETRIEVE_AG_INDICATORS more. command %u, next seg %u", hfp_connection->command, next_segment);
|
||
} else {
|
||
// done, go to next state
|
||
hfp_connection->send_ag_indicators_segment = 0;
|
||
hfp_connection->state = HFP_W4_RETRIEVE_INDICATORS_STATUS;
|
||
}
|
||
return 1;
|
||
}
|
||
default:
|
||
break;
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
static bool hfp_ag_vra_flag_supported(hfp_connection_t * hfp_connection){
|
||
int ag = get_bit(hfp_ag_supported_features, HFP_AGSF_VOICE_RECOGNITION_FUNCTION);
|
||
int hf = get_bit(hfp_connection->remote_supported_features, HFP_HFSF_VOICE_RECOGNITION_FUNCTION);
|
||
return hf && ag;
|
||
}
|
||
|
||
static bool hfp_ag_enhanced_vra_flag_supported(hfp_connection_t * hfp_connection){
|
||
int ag = get_bit(hfp_ag_supported_features, HFP_AGSF_ENHANCED_VOICE_RECOGNITION_STATUS);
|
||
int hf = get_bit(hfp_connection->remote_supported_features, HFP_HFSF_ENHANCED_VOICE_RECOGNITION_STATUS);
|
||
return hf && ag;
|
||
}
|
||
|
||
static bool hfp_ag_can_send_enhanced_vra_message_flag_supported(hfp_connection_t * hfp_connection){
|
||
int ag = get_bit(hfp_ag_supported_features, HFP_AGSF_VOICE_RECOGNITION_TEXT);
|
||
int hf = get_bit(hfp_connection->remote_supported_features, HFP_HFSF_VOICE_RECOGNITION_TEXT);
|
||
return hf && ag;
|
||
}
|
||
|
||
static bool hfp_ag_can_activate_voice_recognition(hfp_connection_t * hfp_connection){
|
||
if (hfp_connection->state < HFP_SERVICE_LEVEL_CONNECTION_ESTABLISHED || hfp_connection->state > HFP_AUDIO_CONNECTION_ESTABLISHED){
|
||
return false;
|
||
}
|
||
if (hfp_connection->vra_state != HFP_VRA_VOICE_RECOGNITION_OFF){
|
||
return false;
|
||
}
|
||
if (hfp_connection->ag_vra_send_command){
|
||
return false;
|
||
}
|
||
return true;
|
||
}
|
||
|
||
static bool hfp_ag_voice_recognition_session_active(hfp_connection_t * hfp_connection){
|
||
if (hfp_connection->state < HFP_SERVICE_LEVEL_CONNECTION_ESTABLISHED || hfp_connection->state > HFP_AUDIO_CONNECTION_ESTABLISHED){
|
||
return false;
|
||
}
|
||
if (hfp_connection->vra_state != HFP_VRA_VOICE_RECOGNITION_ACTIVATED){
|
||
if (hfp_connection->vra_state == HFP_VRA_ENHANCED_VOICE_RECOGNITION_READY_FOR_AUDIO){
|
||
return true;
|
||
}
|
||
return false;
|
||
}
|
||
return true;
|
||
}
|
||
|
||
static bool hfp_ag_is_audio_connection_active(hfp_connection_t * hfp_connection){
|
||
switch (hfp_connection->state){
|
||
case HFP_W2_CONNECT_SCO:
|
||
case HFP_W4_SCO_CONNECTED:
|
||
case HFP_AUDIO_CONNECTION_ESTABLISHED:
|
||
return true;
|
||
default:
|
||
return false;
|
||
}
|
||
}
|
||
|
||
static void hfp_ag_emit_enhanced_voice_recognition_msg_sent_event(hfp_connection_t * hfp_connection, uint8_t status){
|
||
hci_con_handle_t acl_handle = (hfp_connection != NULL) ? hfp_connection->acl_handle : HCI_CON_HANDLE_INVALID;
|
||
|
||
uint8_t event[6];
|
||
event[0] = HCI_EVENT_HFP_META;
|
||
event[1] = sizeof(event) - 2;
|
||
event[2] = HFP_SUBEVENT_ENHANCED_VOICE_RECOGNITION_AG_MESSAGE_SENT;
|
||
little_endian_store_16(event, 3, acl_handle);
|
||
event[5] = status;
|
||
(*hfp_ag_callback)(HCI_EVENT_PACKET, 0, event, sizeof(event));
|
||
}
|
||
|
||
|
||
static void hfp_ag_emit_hf_indicator_value(hfp_connection_t * hfp_connection, uint16_t uuid, uint8_t value){
|
||
hci_con_handle_t acl_handle = (hfp_connection != NULL) ? hfp_connection->acl_handle : HCI_CON_HANDLE_INVALID;
|
||
|
||
uint8_t event[8];
|
||
event[0] = HCI_EVENT_HFP_META;
|
||
event[1] = sizeof(event) - 2;
|
||
event[2] = HFP_SUBEVENT_HF_INDICATOR;
|
||
little_endian_store_16(event, 3, acl_handle);
|
||
little_endian_store_16(event, 5, uuid);
|
||
event[7] = value;
|
||
(*hfp_ag_callback)(HCI_EVENT_PACKET, 0, event, sizeof(event));
|
||
}
|
||
|
||
static void hfp_ag_emit_general_simple_event(uint8_t event_subtype){
|
||
if (!hfp_ag_callback) return;
|
||
|
||
uint8_t event[5];
|
||
event[0] = HCI_EVENT_HFP_META;
|
||
event[1] = sizeof(event) - 2;
|
||
event[2] = event_subtype;
|
||
little_endian_store_16(event, 3, HCI_CON_HANDLE_INVALID);
|
||
(*hfp_ag_callback)(HCI_EVENT_PACKET, 0, event, sizeof(event));
|
||
}
|
||
|
||
static void hfp_ag_emit_custom_command_event(hfp_connection_t * hfp_connection){
|
||
btstack_assert(sizeof(hfp_connection->line_buffer) < (255-5));
|
||
|
||
uint16_t line_len = strlen((const char*)hfp_connection->line_buffer) + 1;
|
||
uint8_t event[7 + sizeof(hfp_connection->line_buffer)];
|
||
event[0] = HCI_EVENT_HFP_META;
|
||
event[1] = 5 + line_len;
|
||
event[2] = HFP_SUBEVENT_CUSTOM_AT_COMMAND;
|
||
little_endian_store_16(event, 3, hfp_connection->acl_handle);
|
||
little_endian_store_16(event, 5, hfp_connection->custom_at_command_id);
|
||
memcpy(&event[7], hfp_connection->line_buffer, line_len);
|
||
(*hfp_ag_callback)(HCI_EVENT_PACKET, 0, event, 7 + line_len);
|
||
}
|
||
|
||
// @return status
|
||
static uint8_t hfp_ag_vra_state_machine_two(hfp_connection_t * hfp_connection){
|
||
uint8_t status = ERROR_CODE_SUCCESS;
|
||
switch (hfp_connection->vra_state_requested){
|
||
case HFP_VRA_W2_SEND_ENHANCED_VOICE_RECOGNITION_READY_FOR_AUDIO:
|
||
if (!hfp_ag_is_audio_connection_active(hfp_connection)){
|
||
status = hfp_ag_setup_audio_connection(hfp_connection);
|
||
if (status != ERROR_CODE_SUCCESS){
|
||
hfp_connection->vra_state_requested = hfp_connection->vra_state;
|
||
hfp_emit_voice_recognition_enabled(hfp_connection, status);
|
||
break;
|
||
}
|
||
}
|
||
hfp_connection->enhanced_voice_recognition_enabled = true;
|
||
hfp_connection->vra_state = HFP_VRA_ENHANCED_VOICE_RECOGNITION_READY_FOR_AUDIO;
|
||
hfp_connection->vra_state_requested = hfp_connection->vra_state;
|
||
hfp_emit_enhanced_voice_recognition_hf_ready_for_audio_event(hfp_connection, ERROR_CODE_SUCCESS);
|
||
break;
|
||
|
||
case HFP_VRA_W2_SEND_VOICE_RECOGNITION_OFF:
|
||
hfp_connection->vra_state = HFP_VRA_VOICE_RECOGNITION_OFF;
|
||
hfp_connection->vra_state_requested = hfp_connection->vra_state;
|
||
|
||
// release audio connection only if it was opened after audio VR activated
|
||
if (hfp_ag_is_audio_connection_active(hfp_connection) && !hfp_connection->ag_audio_connection_opened_before_vra){
|
||
hfp_trigger_release_audio_connection(hfp_connection);
|
||
}
|
||
|
||
hfp_emit_voice_recognition_disabled(hfp_connection, ERROR_CODE_SUCCESS);
|
||
break;
|
||
|
||
case HFP_VRA_W2_SEND_VOICE_RECOGNITION_ACTIVATED:
|
||
// open only if audio connection does not already exist
|
||
if (!hfp_ag_is_audio_connection_active(hfp_connection)){
|
||
status = hfp_ag_setup_audio_connection(hfp_connection);
|
||
if (status != ERROR_CODE_SUCCESS){
|
||
hfp_connection->vra_state_requested = hfp_connection->vra_state;
|
||
hfp_emit_voice_recognition_enabled(hfp_connection, status);
|
||
break;
|
||
}
|
||
}
|
||
|
||
hfp_connection->vra_state = HFP_VRA_VOICE_RECOGNITION_ACTIVATED;
|
||
hfp_connection->vra_state_requested = hfp_connection->vra_state;
|
||
hfp_connection->enhanced_voice_recognition_enabled = hfp_ag_enhanced_vra_flag_supported(hfp_connection);
|
||
|
||
if (hfp_connection->state == HFP_AUDIO_CONNECTION_ESTABLISHED){
|
||
hfp_emit_voice_recognition_enabled(hfp_connection, ERROR_CODE_SUCCESS);
|
||
} else {
|
||
hfp_connection->emit_vra_enabled_after_audio_established = true;
|
||
}
|
||
break;
|
||
|
||
default:
|
||
break;
|
||
}
|
||
return status;
|
||
}
|
||
|
||
static uint8_t hfp_ag_vra_send_command(hfp_connection_t * hfp_connection){
|
||
uint8_t done = 0;
|
||
uint8_t status;
|
||
|
||
switch (hfp_connection->vra_state_requested){
|
||
case HFP_VRA_W2_SEND_ENHANCED_VOICE_RECOGNITION_MSG:
|
||
done = hfp_ag_send_enhanced_voice_recognition_msg_cmd(hfp_connection);
|
||
if (done == 0){
|
||
hfp_ag_emit_enhanced_voice_recognition_msg_sent_event(hfp_connection, ERROR_CODE_UNSPECIFIED_ERROR);
|
||
} else {
|
||
hfp_ag_emit_enhanced_voice_recognition_msg_sent_event(hfp_connection, ERROR_CODE_SUCCESS);
|
||
}
|
||
hfp_connection->vra_state_requested = hfp_connection->vra_state;
|
||
return done;
|
||
|
||
case HFP_VRA_W2_SEND_ENHANCED_VOICE_RECOGNITION_STATUS:
|
||
done = hfp_ag_send_enhanced_voice_recognition_state_cmd(hfp_connection);
|
||
if (done == 0){
|
||
hfp_emit_enhanced_voice_recognition_state_event(hfp_connection, ERROR_CODE_UNSPECIFIED_ERROR);
|
||
} else {
|
||
hfp_emit_enhanced_voice_recognition_state_event(hfp_connection, ERROR_CODE_SUCCESS);
|
||
}
|
||
hfp_connection->vra_state_requested = hfp_connection->vra_state;
|
||
return done;
|
||
|
||
case HFP_VRA_W2_SEND_VOICE_RECOGNITION_ACTIVATED:
|
||
case HFP_VRA_W2_SEND_VOICE_RECOGNITION_OFF:
|
||
done = hfp_ag_send_voice_recognition_cmd(hfp_connection, hfp_connection->ag_activate_voice_recognition_value);
|
||
if (done == 0){
|
||
hfp_connection->vra_state_requested = hfp_connection->vra_state;
|
||
|
||
if (hfp_connection->ag_activate_voice_recognition_value == 1){
|
||
hfp_emit_voice_recognition_enabled(hfp_connection, done);
|
||
} else {
|
||
hfp_emit_voice_recognition_disabled(hfp_connection, done);
|
||
}
|
||
return 0;
|
||
}
|
||
status = hfp_ag_vra_state_machine_two(hfp_connection);
|
||
return (status == ERROR_CODE_SUCCESS) ? 1 : 0;
|
||
|
||
default:
|
||
log_error("state %u", hfp_connection->vra_state_requested);
|
||
btstack_assert(false);
|
||
return 0;
|
||
}
|
||
}
|
||
|
||
static int hfp_ag_voice_recognition_state_machine(hfp_connection_t * hfp_connection){
|
||
if (hfp_connection->state < HFP_SERVICE_LEVEL_CONNECTION_ESTABLISHED) {
|
||
return 0;
|
||
}
|
||
int done = 0;
|
||
uint8_t status;
|
||
|
||
// VRA action initiated by AG
|
||
if (hfp_connection->ag_vra_send_command){
|
||
hfp_connection->ag_vra_send_command = false;
|
||
return hfp_ag_vra_send_command(hfp_connection);
|
||
}
|
||
|
||
if (hfp_connection->ag_vra_requested_by_hf){
|
||
hfp_connection->ag_vra_requested_by_hf = false;
|
||
|
||
// HF initiatied voice recognition, parser extracted activation value
|
||
switch (hfp_connection->ag_activate_voice_recognition_value){
|
||
case 0:
|
||
if (hfp_ag_voice_recognition_session_active(hfp_connection)){
|
||
hfp_connection->vra_state_requested = HFP_VRA_W2_SEND_VOICE_RECOGNITION_OFF;
|
||
done = hfp_ag_send_ok(hfp_connection->rfcomm_cid);
|
||
}
|
||
break;
|
||
|
||
case 1:
|
||
if (hfp_ag_can_activate_voice_recognition(hfp_connection)){
|
||
hfp_connection->vra_state_requested = HFP_VRA_W2_SEND_VOICE_RECOGNITION_ACTIVATED;
|
||
done = hfp_ag_send_ok(hfp_connection->rfcomm_cid);
|
||
}
|
||
break;
|
||
|
||
case 2:
|
||
if (hfp_ag_voice_recognition_session_active(hfp_connection)){
|
||
hfp_connection->vra_state_requested = HFP_VRA_W2_SEND_ENHANCED_VOICE_RECOGNITION_READY_FOR_AUDIO;
|
||
done = hfp_ag_send_ok(hfp_connection->rfcomm_cid);
|
||
}
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
if (done == 0){
|
||
hfp_connection->vra_state_requested = hfp_connection->vra_state;
|
||
done = hfp_ag_send_error(hfp_connection->rfcomm_cid);
|
||
return 1;
|
||
}
|
||
|
||
status = hfp_ag_vra_state_machine_two(hfp_connection);
|
||
return (status == ERROR_CODE_SUCCESS) ? 1 : 0;
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
static int hfp_ag_run_for_context_service_level_connection_queries(hfp_connection_t * hfp_connection){
|
||
if (hfp_connection->state < HFP_SERVICE_LEVEL_CONNECTION_ESTABLISHED) {
|
||
return 0;
|
||
}
|
||
|
||
int sent = codecs_exchange_state_machine(hfp_connection);
|
||
if (sent) return 1;
|
||
|
||
if (has_in_band_ring_tone()){
|
||
if (hfp_connection->ag_in_band_ring_tone_active != hfp_ag_in_band_ring_tone_active) {
|
||
hfp_connection->ag_in_band_ring_tone_active = hfp_ag_in_band_ring_tone_active;
|
||
hfp_ag_send_change_in_band_ring_tone_setting_cmd(hfp_connection);
|
||
return 1;
|
||
}
|
||
}
|
||
|
||
switch(hfp_connection->command){
|
||
case HFP_CMD_QUERY_OPERATOR_SELECTION_NAME:
|
||
hfp_ag_send_report_network_operator_name_cmd(hfp_connection->rfcomm_cid, hfp_connection->network_operator);
|
||
return 1;
|
||
case HFP_CMD_QUERY_OPERATOR_SELECTION_NAME_FORMAT:
|
||
if (hfp_connection->network_operator.format != 0){
|
||
hfp_ag_send_error(hfp_connection->rfcomm_cid);
|
||
} else {
|
||
hfp_ag_send_ok(hfp_connection->rfcomm_cid);
|
||
}
|
||
return 1;
|
||
case HFP_CMD_ENABLE_INDIVIDUAL_AG_INDICATOR_STATUS_UPDATE:
|
||
hfp_ag_send_ok(hfp_connection->rfcomm_cid);
|
||
return 1;
|
||
case HFP_CMD_ENABLE_EXTENDED_AUDIO_GATEWAY_ERROR:
|
||
if (hfp_connection->extended_audio_gateway_error){
|
||
hfp_connection->extended_audio_gateway_error = 0;
|
||
hfp_ag_send_report_extended_audio_gateway_error(hfp_connection->rfcomm_cid, hfp_connection->extended_audio_gateway_error_value);
|
||
return 1;
|
||
}
|
||
break;
|
||
case HFP_CMD_ENABLE_INDICATOR_STATUS_UPDATE:
|
||
hfp_ag_send_ok(hfp_connection->rfcomm_cid);
|
||
return 1;
|
||
default:
|
||
break;
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
static int hfp_ag_run_for_audio_connection(hfp_connection_t * hfp_connection){
|
||
if ((hfp_connection->state < HFP_SERVICE_LEVEL_CONNECTION_ESTABLISHED) ||
|
||
(hfp_connection->state > HFP_W2_DISCONNECT_SCO)) return 0;
|
||
|
||
if (hfp_connection->state == HFP_AUDIO_CONNECTION_ESTABLISHED) return 0;
|
||
|
||
if (hfp_connection->release_audio_connection){
|
||
hfp_connection->state = HFP_W4_SCO_DISCONNECTED;
|
||
hfp_connection->release_audio_connection = 0;
|
||
gap_disconnect(hfp_connection->sco_handle);
|
||
return 1;
|
||
}
|
||
|
||
// accept incoming audio connection (codec negotiation is not used)
|
||
if (hfp_connection->accept_sco && (hfp_sco_setup_active() == false)){
|
||
// notify about codec selection if not done already
|
||
if (hfp_connection->negotiated_codec == 0){
|
||
hfp_connection->negotiated_codec = HFP_CODEC_CVSD;
|
||
}
|
||
//
|
||
bool incoming_eSCO = hfp_connection->accept_sco == 2;
|
||
hfp_connection->state = HFP_W4_SCO_CONNECTED;
|
||
hfp_accept_synchronous_connection(hfp_connection, incoming_eSCO);
|
||
return 1;
|
||
}
|
||
|
||
// run codecs exchange
|
||
int sent = codecs_exchange_state_machine(hfp_connection);
|
||
if (sent) return 1;
|
||
|
||
if (hfp_connection->codecs_state != HFP_CODECS_EXCHANGED) return 0;
|
||
if (hfp_sco_setup_active()) return 0;
|
||
if (hci_can_send_command_packet_now() == false) return 0;
|
||
if (hfp_connection->establish_audio_connection){
|
||
hfp_connection->state = HFP_W4_SCO_CONNECTED;
|
||
hfp_connection->establish_audio_connection = 0;
|
||
hfp_setup_synchronous_connection(hfp_connection);
|
||
return 1;
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
static void hfp_ag_set_callsetup_indicator(void){
|
||
hfp_ag_indicator_t * indicator = get_ag_indicator_for_name("callsetup");
|
||
if (!indicator){
|
||
log_error("hfp_ag_set_callsetup_indicator: callsetup indicator is missing");
|
||
return;
|
||
};
|
||
indicator->status = hfp_gsm_callsetup_status();
|
||
}
|
||
|
||
static void hfp_ag_set_callheld_indicator(void){
|
||
hfp_ag_indicator_t * indicator = get_ag_indicator_for_name("callheld");
|
||
if (!indicator){
|
||
log_error("hfp_ag_set_callheld_state: callheld indicator is missing");
|
||
return;
|
||
};
|
||
indicator->status = hfp_gsm_callheld_status();
|
||
}
|
||
|
||
//
|
||
// transition implementations for hfp_ag_call_state_machine
|
||
//
|
||
|
||
static void hfp_ag_hf_start_ringing_incoming(hfp_connection_t * hfp_connection){
|
||
if (use_in_band_tone(hfp_connection)){
|
||
hfp_connection->call_state = HFP_CALL_W4_AUDIO_CONNECTION_FOR_IN_BAND_RING;
|
||
hfp_ag_establish_audio_connection(hfp_connection->acl_handle);
|
||
} else {
|
||
hfp_connection->call_state = HFP_CALL_INCOMING_RINGING;
|
||
}
|
||
}
|
||
|
||
static void hfp_ag_hf_start_ringing_outgoing(hfp_connection_t * hfp_connection){
|
||
hfp_connection->call_state = HFP_CALL_OUTGOING_RINGING;
|
||
}
|
||
|
||
static void hfp_ag_hf_stop_ringing(hfp_connection_t * hfp_connection){
|
||
hfp_connection->ag_ring = 0;
|
||
hfp_connection->ag_send_clip = 0;
|
||
}
|
||
|
||
|
||
static void hfp_ag_trigger_incoming_call_during_active_one(void){
|
||
btstack_linked_list_iterator_t it;
|
||
btstack_linked_list_iterator_init(&it, hfp_get_connections());
|
||
while (btstack_linked_list_iterator_has_next(&it)){
|
||
hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it);
|
||
if (hfp_connection->local_role != HFP_ROLE_AG) continue;
|
||
if (hfp_connection->call_state != HFP_CALL_ACTIVE) continue;
|
||
|
||
hfp_connection->call_state = HFP_CALL_W2_SEND_CALL_WAITING;
|
||
hfp_ag_run_for_context(hfp_connection);
|
||
}
|
||
}
|
||
|
||
static void hfp_ag_trigger_ring_and_clip(void) {
|
||
btstack_linked_list_iterator_t it;
|
||
btstack_linked_list_iterator_init(&it, hfp_get_connections());
|
||
while (btstack_linked_list_iterator_has_next(&it)){
|
||
hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it);
|
||
if (hfp_connection->local_role != HFP_ROLE_AG) continue;
|
||
switch (hfp_connection->call_state){
|
||
case HFP_CALL_INCOMING_RINGING:
|
||
case HFP_CALL_OUTGOING_RINGING:
|
||
case HFP_CALL_W4_AUDIO_CONNECTION_FOR_IN_BAND_RING:
|
||
// Queue RING on this connection
|
||
hfp_connection->ag_ring = 1;
|
||
|
||
// HFP v1.8, 4.23 Calling Line Identification (CLI) Notification
|
||
// "If the calling subscriber number information is available from the network, the AG shall issue the
|
||
// +CLIP unsolicited result code just after every RING indication when the HF is alerted in an incoming call."
|
||
hfp_connection->ag_send_clip = hfp_gsm_clip_type() && hfp_connection->clip_enabled;
|
||
|
||
// trigger next message
|
||
rfcomm_request_can_send_now_event(hfp_connection->rfcomm_cid);
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
// trigger RING and CLIP messages on connections that are ringing
|
||
static void hfp_ag_ring_timeout_handler(btstack_timer_source_t * timer){
|
||
hfp_ag_trigger_ring_and_clip();
|
||
|
||
btstack_run_loop_set_timer(timer, HFP_RING_PERIOD_MS); // 2 seconds timeout
|
||
btstack_run_loop_add_timer(timer);
|
||
}
|
||
|
||
static void hfp_ag_ring_timeout_stop(void){
|
||
btstack_run_loop_remove_timer(&hfp_ag_ring_timeout);
|
||
}
|
||
|
||
static void hfp_ag_start_ringing(void){
|
||
// setup ring timer
|
||
btstack_run_loop_remove_timer(&hfp_ag_ring_timeout);
|
||
btstack_run_loop_set_timer_handler(&hfp_ag_ring_timeout, hfp_ag_ring_timeout_handler);
|
||
btstack_run_loop_set_timer(&hfp_ag_ring_timeout, HFP_RING_PERIOD_MS); // 2 seconds timeout
|
||
btstack_run_loop_add_timer(&hfp_ag_ring_timeout);
|
||
|
||
// emit start ringing
|
||
hfp_ag_emit_general_simple_event(HFP_SUBEVENT_START_RINGING);
|
||
|
||
// send initial RING + CLIP
|
||
hfp_ag_trigger_ring_and_clip();
|
||
}
|
||
|
||
static void hfp_ag_stop_ringing(void){
|
||
hfp_ag_ring_timeout_stop();
|
||
hfp_ag_emit_general_simple_event(HFP_SUBEVENT_STOP_RINGING);
|
||
|
||
btstack_linked_list_iterator_t it;
|
||
btstack_linked_list_iterator_init(&it, hfp_get_connections());
|
||
while (btstack_linked_list_iterator_has_next(&it)){
|
||
hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it);
|
||
if (hfp_connection->local_role != HFP_ROLE_AG) continue;
|
||
if ((hfp_connection->call_state != HFP_CALL_INCOMING_RINGING) &&
|
||
(hfp_connection->call_state != HFP_CALL_W4_AUDIO_CONNECTION_FOR_IN_BAND_RING)) continue;
|
||
hfp_ag_hf_stop_ringing(hfp_connection);
|
||
}
|
||
}
|
||
|
||
static void hfp_ag_trigger_incoming_call_idle(void){
|
||
int indicator_index = get_ag_indicator_index_for_name("callsetup");
|
||
if (indicator_index < 0) return;
|
||
|
||
// update callsetup state in connections
|
||
btstack_linked_list_iterator_t it;
|
||
btstack_linked_list_iterator_init(&it, hfp_get_connections());
|
||
while (btstack_linked_list_iterator_has_next(&it)){
|
||
hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it);
|
||
if (hfp_connection->local_role != HFP_ROLE_AG) continue;
|
||
if (hfp_connection->call_state != HFP_CALL_IDLE) continue;
|
||
|
||
hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, indicator_index, 1);
|
||
|
||
hfp_ag_hf_start_ringing_incoming(hfp_connection);
|
||
|
||
hfp_ag_run_for_context(hfp_connection);
|
||
}
|
||
|
||
// start local ringing - started after connection state has been updated
|
||
hfp_ag_start_ringing();
|
||
}
|
||
|
||
static void hfp_ag_trigger_outgoing_call(void){
|
||
btstack_linked_list_iterator_t it;
|
||
btstack_linked_list_iterator_init(&it, hfp_get_connections());
|
||
while (btstack_linked_list_iterator_has_next(&it)){
|
||
hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it);
|
||
if (hfp_connection->local_role != HFP_ROLE_AG) continue;
|
||
hfp_ag_establish_service_level_connection(hfp_connection->remote_addr);
|
||
if (hfp_connection->call_state == HFP_CALL_IDLE){
|
||
hfp_connection->call_state = HFP_CALL_OUTGOING_INITIATED;
|
||
}
|
||
}
|
||
}
|
||
|
||
static void hfp_ag_handle_outgoing_call_accepted(hfp_connection_t * hfp_connection){
|
||
hfp_connection->call_state = HFP_CALL_OUTGOING_DIALING;
|
||
|
||
// trigger callsetup to be
|
||
int put_call_on_hold = hfp_gsm_call_status() == HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT;
|
||
hfp_gsm_handler(HFP_AG_OUTGOING_CALL_ACCEPTED, 0, 0, NULL);
|
||
|
||
int indicator_index ;
|
||
|
||
hfp_ag_set_callsetup_indicator();
|
||
indicator_index = get_ag_indicator_index_for_name("callsetup");
|
||
hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, indicator_index, 1);
|
||
|
||
// put current call on hold if active
|
||
if (put_call_on_hold){
|
||
log_info("AG putting current call on hold for new outgoing call");
|
||
hfp_ag_set_callheld_indicator();
|
||
indicator_index = get_ag_indicator_index_for_name("callheld");
|
||
hfp_ag_send_transfer_ag_indicators_status_cmd(hfp_connection->rfcomm_cid, &hfp_ag_indicators[indicator_index]);
|
||
}
|
||
|
||
// start audio if needed
|
||
hfp_ag_establish_audio_connection(hfp_connection->acl_handle);
|
||
}
|
||
|
||
static void hfp_ag_transfer_indicator(const char * name){
|
||
int indicator_index = get_ag_indicator_index_for_name(name);
|
||
if (indicator_index < 0) return;
|
||
|
||
btstack_linked_list_iterator_t it;
|
||
btstack_linked_list_iterator_init(&it, hfp_get_connections());
|
||
while (btstack_linked_list_iterator_has_next(&it)){
|
||
hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it);
|
||
if (hfp_connection->local_role != HFP_ROLE_AG) continue;
|
||
hfp_ag_establish_service_level_connection(hfp_connection->remote_addr);
|
||
hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, indicator_index, 1);
|
||
hfp_ag_run_for_context(hfp_connection);
|
||
}
|
||
}
|
||
|
||
static void hfp_ag_transfer_callsetup_state(void){
|
||
hfp_ag_transfer_indicator("callsetup");
|
||
}
|
||
|
||
static void hfp_ag_transfer_call_state(void){
|
||
hfp_ag_transfer_indicator("call");
|
||
}
|
||
|
||
static void hfp_ag_transfer_callheld_state(void){
|
||
hfp_ag_transfer_indicator("callheld");
|
||
}
|
||
|
||
static void hfp_ag_hf_accept_call(hfp_connection_t * source){
|
||
int call_indicator_index = get_ag_indicator_index_for_name("call");
|
||
int callsetup_indicator_index = get_ag_indicator_index_for_name("callsetup");
|
||
|
||
hfp_ag_stop_ringing();
|
||
|
||
btstack_linked_list_iterator_t it;
|
||
btstack_linked_list_iterator_init(&it, hfp_get_connections());
|
||
while (btstack_linked_list_iterator_has_next(&it)){
|
||
hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it);
|
||
if (hfp_connection->local_role != HFP_ROLE_AG) continue;
|
||
if ((hfp_connection->call_state != HFP_CALL_INCOMING_RINGING) &&
|
||
(hfp_connection->call_state != HFP_CALL_W4_AUDIO_CONNECTION_FOR_IN_BAND_RING)) continue;
|
||
|
||
if (hfp_connection == source){
|
||
|
||
if (use_in_band_tone(hfp_connection)){
|
||
hfp_connection->call_state = HFP_CALL_ACTIVE;
|
||
} else {
|
||
hfp_connection->call_state = HFP_CALL_W4_AUDIO_CONNECTION_FOR_ACTIVE;
|
||
hfp_ag_establish_audio_connection(hfp_connection->acl_handle);
|
||
}
|
||
|
||
hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, call_indicator_index, 1);
|
||
hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callsetup_indicator_index, 1);
|
||
|
||
} else {
|
||
hfp_connection->call_state = HFP_CALL_IDLE;
|
||
}
|
||
hfp_ag_run_for_context(hfp_connection);
|
||
}
|
||
}
|
||
|
||
static void hfp_ag_ag_accept_call(void){
|
||
int call_indicator_index = get_ag_indicator_index_for_name("call");
|
||
int callsetup_indicator_index = get_ag_indicator_index_for_name("callsetup");
|
||
|
||
hfp_ag_stop_ringing();
|
||
|
||
btstack_linked_list_iterator_t it;
|
||
btstack_linked_list_iterator_init(&it, hfp_get_connections());
|
||
while (btstack_linked_list_iterator_has_next(&it)){
|
||
hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it);
|
||
if (hfp_connection->local_role != HFP_ROLE_AG) continue;
|
||
if ((hfp_connection->call_state != HFP_CALL_INCOMING_RINGING) &&
|
||
(hfp_connection->call_state != HFP_CALL_W4_AUDIO_CONNECTION_FOR_IN_BAND_RING)) continue;
|
||
|
||
hfp_connection->call_state = HFP_CALL_TRIGGER_AUDIO_CONNECTION;
|
||
|
||
hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, call_indicator_index, 1);
|
||
hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callsetup_indicator_index, 1);
|
||
|
||
hfp_ag_run_for_context(hfp_connection);
|
||
break; // only single
|
||
}
|
||
}
|
||
|
||
static void hfp_ag_trigger_reject_call(void){
|
||
int callsetup_indicator_index = get_ag_indicator_index_for_name("callsetup");
|
||
|
||
hfp_ag_stop_ringing();
|
||
|
||
btstack_linked_list_iterator_t it;
|
||
btstack_linked_list_iterator_init(&it, hfp_get_connections());
|
||
while (btstack_linked_list_iterator_has_next(&it)){
|
||
hfp_connection_t * connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it);
|
||
if (connection->local_role != HFP_ROLE_AG) continue;
|
||
|
||
switch (connection->call_state){
|
||
case HFP_CALL_INCOMING_RINGING:
|
||
case HFP_CALL_W4_AUDIO_CONNECTION_FOR_IN_BAND_RING:
|
||
case HFP_CALL_OUTGOING_RINGING:
|
||
case HFP_CALL_OUTGOING_INITIATED:
|
||
case HFP_CALL_OUTGOING_DIALING:
|
||
break;
|
||
default:
|
||
continue;
|
||
}
|
||
|
||
connection->call_state = HFP_CALL_IDLE;
|
||
connection->ag_indicators_status_update_bitmap = store_bit(connection->ag_indicators_status_update_bitmap, callsetup_indicator_index, 1);
|
||
|
||
if (connection->state == HFP_AUDIO_CONNECTION_ESTABLISHED){
|
||
connection->release_audio_connection = 1;
|
||
}
|
||
hfp_emit_simple_event(connection, HFP_SUBEVENT_CALL_TERMINATED);
|
||
hfp_ag_run_for_context(connection);
|
||
rfcomm_request_can_send_now_event(connection->rfcomm_cid);
|
||
}
|
||
}
|
||
|
||
static void hfp_ag_trigger_terminate_call(void){
|
||
int call_indicator_index = get_ag_indicator_index_for_name("call");
|
||
|
||
// no ringing during call
|
||
|
||
btstack_linked_list_iterator_t it;
|
||
btstack_linked_list_iterator_init(&it, hfp_get_connections());
|
||
while (btstack_linked_list_iterator_has_next(&it)){
|
||
hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it);
|
||
if (hfp_connection->local_role != HFP_ROLE_AG) continue;
|
||
if (hfp_connection->call_state == HFP_CALL_IDLE) continue;
|
||
|
||
hfp_connection->call_state = HFP_CALL_IDLE;
|
||
hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, call_indicator_index, 1);
|
||
|
||
if (hfp_connection->state == HFP_AUDIO_CONNECTION_ESTABLISHED){
|
||
hfp_connection->release_audio_connection = 1;
|
||
}
|
||
|
||
hfp_emit_simple_event(hfp_connection, HFP_SUBEVENT_CALL_TERMINATED);
|
||
hfp_ag_run_for_context(hfp_connection);
|
||
rfcomm_request_can_send_now_event(hfp_connection->rfcomm_cid);
|
||
}
|
||
}
|
||
|
||
static void hfp_ag_set_call_indicator(void){
|
||
hfp_ag_indicator_t * indicator = get_ag_indicator_for_name("call");
|
||
if (!indicator){
|
||
log_error("hfp_ag_set_call_state: call indicator is missing");
|
||
return;
|
||
};
|
||
indicator->status = hfp_gsm_call_status();
|
||
}
|
||
|
||
static hfp_connection_t * hfp_ag_connection_for_call_state(hfp_call_state_t call_state){
|
||
btstack_linked_list_iterator_t it;
|
||
btstack_linked_list_iterator_init(&it, hfp_get_connections());
|
||
while (btstack_linked_list_iterator_has_next(&it)){
|
||
hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it);
|
||
if (hfp_connection->local_role != HFP_ROLE_AG) continue;
|
||
if (hfp_connection->call_state == call_state) return hfp_connection;
|
||
}
|
||
return NULL;
|
||
}
|
||
|
||
static void hfp_ag_send_response_and_hold_state(hfp_response_and_hold_state_t state){
|
||
btstack_linked_list_iterator_t it;
|
||
btstack_linked_list_iterator_init(&it, hfp_get_connections());
|
||
while (btstack_linked_list_iterator_has_next(&it)){
|
||
hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it);
|
||
if (hfp_connection->local_role != HFP_ROLE_AG) continue;
|
||
hfp_connection->send_response_and_hold_status = state + 1;
|
||
}
|
||
}
|
||
|
||
static int call_setup_state_machine(hfp_connection_t * hfp_connection){
|
||
int indicator_index;
|
||
switch (hfp_connection->call_state){
|
||
case HFP_CALL_W4_AUDIO_CONNECTION_FOR_IN_BAND_RING:
|
||
if (hfp_connection->state != HFP_AUDIO_CONNECTION_ESTABLISHED) return 0;
|
||
// we got event: audio hfp_connection established
|
||
hfp_connection->call_state = HFP_CALL_INCOMING_RINGING;
|
||
break;
|
||
case HFP_CALL_W4_AUDIO_CONNECTION_FOR_ACTIVE:
|
||
if (hfp_connection->state != HFP_AUDIO_CONNECTION_ESTABLISHED) return 0;
|
||
// we got event: audio hfp_connection established
|
||
hfp_connection->call_state = HFP_CALL_ACTIVE;
|
||
break;
|
||
case HFP_CALL_W2_SEND_CALL_WAITING:
|
||
hfp_connection->call_state = HFP_CALL_W4_CHLD;
|
||
hfp_ag_send_call_waiting_notification(hfp_connection->rfcomm_cid);
|
||
indicator_index = get_ag_indicator_index_for_name("callsetup");
|
||
hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, indicator_index, 1);
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
// functions extracted from hfp_ag_call_sm below
|
||
static void hfp_ag_handle_reject_outgoing_call(void){
|
||
hfp_connection_t * hfp_connection = hfp_ag_connection_for_call_state(HFP_CALL_OUTGOING_INITIATED);
|
||
if (!hfp_connection){
|
||
log_info("hfp_ag_call_sm: did not find outgoing hfp_connection in initiated state");
|
||
return;
|
||
}
|
||
|
||
hfp_gsm_handler(HFP_AG_OUTGOING_CALL_REJECTED, 0, 0, NULL);
|
||
hfp_connection->call_state = HFP_CALL_IDLE;
|
||
hfp_connection->send_error = 1;
|
||
hfp_ag_run_for_context(hfp_connection);
|
||
}
|
||
|
||
// hfp_connection is used to identify originating HF
|
||
static void hfp_ag_call_sm(hfp_ag_call_event_t event, hfp_connection_t * hfp_connection){
|
||
|
||
// allow to intercept call statemachine events
|
||
if (hfp_ag_custom_call_sm_handler != NULL){
|
||
bool handle_event = (*hfp_ag_custom_call_sm_handler)(event);
|
||
if (!handle_event) return;
|
||
}
|
||
|
||
int callsetup_indicator_index = get_ag_indicator_index_for_name("callsetup");
|
||
int callheld_indicator_index = get_ag_indicator_index_for_name("callheld");
|
||
int call_indicator_index = get_ag_indicator_index_for_name("call");
|
||
|
||
switch (event){
|
||
case HFP_AG_INCOMING_CALL:
|
||
switch (hfp_gsm_call_status()){
|
||
case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS:
|
||
switch (hfp_gsm_callsetup_status()){
|
||
case HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS:
|
||
hfp_gsm_handler(HFP_AG_INCOMING_CALL, 0, 0, NULL);
|
||
hfp_ag_set_callsetup_indicator();
|
||
hfp_ag_trigger_incoming_call_idle();
|
||
log_info("AG rings");
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
break;
|
||
case HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT:
|
||
switch (hfp_gsm_callsetup_status()){
|
||
case HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS:
|
||
hfp_gsm_handler(HFP_AG_INCOMING_CALL, 0, 0, NULL);
|
||
hfp_ag_set_callsetup_indicator();
|
||
hfp_ag_trigger_incoming_call_during_active_one();
|
||
log_info("AG call waiting");
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
break;
|
||
case HFP_AG_INCOMING_CALL_ACCEPTED_BY_AG:
|
||
switch (hfp_gsm_call_status()){
|
||
case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS:
|
||
switch (hfp_gsm_callsetup_status()){
|
||
case HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS:
|
||
hfp_gsm_handler(HFP_AG_INCOMING_CALL_ACCEPTED_BY_AG, 0, 0, NULL);
|
||
hfp_ag_set_call_indicator();
|
||
hfp_ag_set_callsetup_indicator();
|
||
hfp_ag_ag_accept_call();
|
||
log_info("AG answers call, accept call by GSM");
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
break;
|
||
case HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT:
|
||
switch (hfp_gsm_callsetup_status()){
|
||
case HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS:
|
||
log_info("AG: current call is placed on hold, incoming call gets active");
|
||
hfp_gsm_handler(HFP_AG_INCOMING_CALL_ACCEPTED_BY_AG, 0, 0, NULL);
|
||
hfp_ag_set_callsetup_indicator();
|
||
hfp_ag_set_callheld_indicator();
|
||
hfp_ag_transfer_callsetup_state();
|
||
hfp_ag_transfer_callheld_state();
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
break;
|
||
|
||
case HFP_AG_HELD_CALL_JOINED_BY_AG:
|
||
switch (hfp_gsm_call_status()){
|
||
case HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT:
|
||
switch (hfp_gsm_callheld_status()){
|
||
case HFP_CALLHELD_STATUS_CALL_ON_HOLD_OR_SWAPPED:
|
||
log_info("AG: joining held call with active call");
|
||
hfp_gsm_handler(HFP_AG_HELD_CALL_JOINED_BY_AG, 0, 0, NULL);
|
||
hfp_ag_set_callheld_indicator();
|
||
hfp_ag_transfer_callheld_state();
|
||
hfp_emit_simple_event(hfp_connection, HFP_SUBEVENT_CONFERENCE_CALL);
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
break;
|
||
|
||
case HFP_AG_INCOMING_CALL_ACCEPTED_BY_HF:
|
||
switch (hfp_gsm_call_status()){
|
||
case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS:
|
||
switch (hfp_gsm_callsetup_status()){
|
||
case HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS:
|
||
hfp_gsm_handler(HFP_AG_INCOMING_CALL_ACCEPTED_BY_HF, 0, 0, NULL);
|
||
hfp_ag_set_callsetup_indicator();
|
||
hfp_ag_set_call_indicator();
|
||
hfp_ag_hf_accept_call(hfp_connection);
|
||
hfp_connection->ok_pending = 1;
|
||
log_info("HF answers call, accept call by GSM");
|
||
hfp_emit_simple_event(hfp_connection, HFP_SUBEVENT_CALL_ANSWERED);
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
break;
|
||
|
||
case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_AG:
|
||
switch (hfp_gsm_call_status()){
|
||
case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS:
|
||
switch (hfp_gsm_callsetup_status()){
|
||
case HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS:
|
||
hfp_gsm_handler(HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_AG, 0, 0, NULL);
|
||
hfp_ag_response_and_hold_active = true;
|
||
hfp_ag_response_and_hold_state = HFP_RESPONSE_AND_HOLD_INCOMING_ON_HOLD;
|
||
hfp_ag_send_response_and_hold_state(hfp_ag_response_and_hold_state);
|
||
// as with regular call
|
||
hfp_ag_set_call_indicator();
|
||
hfp_ag_set_callsetup_indicator();
|
||
hfp_ag_ag_accept_call();
|
||
log_info("AG response and hold - hold by AG");
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
break;
|
||
|
||
case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_HF:
|
||
switch (hfp_gsm_call_status()){
|
||
case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS:
|
||
switch (hfp_gsm_callsetup_status()){
|
||
case HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS:
|
||
hfp_gsm_handler(HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_HF, 0, 0, NULL);
|
||
hfp_ag_response_and_hold_active = true;
|
||
hfp_ag_response_and_hold_state = HFP_RESPONSE_AND_HOLD_INCOMING_ON_HOLD;
|
||
hfp_ag_send_response_and_hold_state(hfp_ag_response_and_hold_state);
|
||
// as with regular call
|
||
hfp_ag_set_call_indicator();
|
||
hfp_ag_set_callsetup_indicator();
|
||
hfp_ag_hf_accept_call(hfp_connection);
|
||
log_info("AG response and hold - hold by HF");
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
break;
|
||
|
||
case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_HELD_CALL_BY_AG:
|
||
case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_HELD_CALL_BY_HF:
|
||
if (!hfp_ag_response_and_hold_active) break;
|
||
if (hfp_ag_response_and_hold_state != HFP_RESPONSE_AND_HOLD_INCOMING_ON_HOLD) break;
|
||
hfp_gsm_handler(HFP_AG_RESPONSE_AND_HOLD_ACCEPT_HELD_CALL_BY_AG, 0, 0, NULL);
|
||
hfp_ag_response_and_hold_active = false;
|
||
hfp_ag_response_and_hold_state = HFP_RESPONSE_AND_HOLD_HELD_INCOMING_ACCEPTED;
|
||
hfp_ag_send_response_and_hold_state(hfp_ag_response_and_hold_state);
|
||
log_info("Held Call accepted and active");
|
||
break;
|
||
|
||
case HFP_AG_RESPONSE_AND_HOLD_REJECT_HELD_CALL_BY_AG:
|
||
case HFP_AG_RESPONSE_AND_HOLD_REJECT_HELD_CALL_BY_HF:
|
||
if (!hfp_ag_response_and_hold_active) break;
|
||
if (hfp_ag_response_and_hold_state != HFP_RESPONSE_AND_HOLD_INCOMING_ON_HOLD) break;
|
||
hfp_gsm_handler(HFP_AG_RESPONSE_AND_HOLD_REJECT_HELD_CALL_BY_AG, 0, 0, NULL);
|
||
hfp_ag_response_and_hold_active = false;
|
||
hfp_ag_response_and_hold_state = HFP_RESPONSE_AND_HOLD_HELD_INCOMING_REJECTED;
|
||
hfp_ag_send_response_and_hold_state(hfp_ag_response_and_hold_state);
|
||
// from terminate by ag
|
||
hfp_ag_set_call_indicator();
|
||
hfp_ag_trigger_terminate_call();
|
||
break;
|
||
|
||
case HFP_AG_TERMINATE_CALL_BY_HF:
|
||
switch (hfp_gsm_call_status()){
|
||
case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS:
|
||
switch (hfp_gsm_callsetup_status()){
|
||
case HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS:
|
||
case HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_ALERTING_STATE:
|
||
case HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_DIALING_STATE:
|
||
hfp_gsm_handler(HFP_AG_TERMINATE_CALL_BY_HF, 0, 0, NULL);
|
||
hfp_ag_set_callsetup_indicator();
|
||
hfp_ag_transfer_callsetup_state();
|
||
hfp_ag_trigger_reject_call();
|
||
log_info("HF Rejected Incoming call, AG terminate call");
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
break;
|
||
case HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT:
|
||
hfp_gsm_handler(HFP_AG_TERMINATE_CALL_BY_HF, 0, 0, NULL);
|
||
hfp_ag_set_callsetup_indicator();
|
||
hfp_ag_set_call_indicator();
|
||
hfp_ag_trigger_terminate_call();
|
||
log_info("AG terminate call");
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
break;
|
||
|
||
case HFP_AG_TERMINATE_CALL_BY_AG:
|
||
switch (hfp_gsm_call_status()){
|
||
case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS:
|
||
switch (hfp_gsm_callsetup_status()){
|
||
case HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS:
|
||
case HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_DIALING_STATE:
|
||
case HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_ALERTING_STATE:
|
||
case HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS:
|
||
hfp_gsm_handler(HFP_AG_TERMINATE_CALL_BY_AG, 0, 0, NULL);
|
||
hfp_ag_set_callsetup_indicator();
|
||
hfp_ag_trigger_reject_call();
|
||
log_info("AG Rejected Incoming call, AG terminate call");
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
break;
|
||
case HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT:
|
||
hfp_gsm_handler(HFP_AG_TERMINATE_CALL_BY_AG, 0, 0, NULL);
|
||
hfp_ag_set_callsetup_indicator();
|
||
hfp_ag_set_call_indicator();
|
||
hfp_ag_trigger_terminate_call();
|
||
log_info("AG terminate call");
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
break;
|
||
case HFP_AG_CALL_DROPPED:
|
||
switch (hfp_gsm_call_status()){
|
||
case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS:
|
||
switch (hfp_gsm_callsetup_status()){
|
||
case HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS:
|
||
case HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_ALERTING_STATE:
|
||
hfp_ag_stop_ringing();
|
||
break;
|
||
case HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_DIALING_STATE:
|
||
log_info("Outgoing call interrupted\n");
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
hfp_gsm_handler(HFP_AG_CALL_DROPPED, 0, 0, NULL);
|
||
hfp_ag_set_callsetup_indicator();
|
||
hfp_ag_transfer_callsetup_state();
|
||
hfp_ag_trigger_terminate_call();
|
||
break;
|
||
case HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT:
|
||
if (hfp_ag_response_and_hold_active) {
|
||
hfp_gsm_handler(HFP_AG_CALL_DROPPED, 0, 0, NULL);
|
||
hfp_ag_response_and_hold_state = HFP_RESPONSE_AND_HOLD_HELD_INCOMING_REJECTED;
|
||
hfp_ag_send_response_and_hold_state(hfp_ag_response_and_hold_state);
|
||
}
|
||
hfp_gsm_handler(HFP_AG_CALL_DROPPED, 0, 0, NULL);
|
||
hfp_ag_set_callsetup_indicator();
|
||
hfp_ag_set_call_indicator();
|
||
hfp_ag_trigger_terminate_call();
|
||
log_info("AG notify call dropped");
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
break;
|
||
|
||
case HFP_AG_OUTGOING_CALL_INITIATED_BY_HF:
|
||
// directly reject call if number of free slots is exceeded
|
||
if (!hfp_gsm_call_possible()){
|
||
hfp_connection->send_error = 1;
|
||
hfp_ag_run_for_context(hfp_connection);
|
||
break;
|
||
}
|
||
|
||
// note: number not used currently
|
||
hfp_gsm_handler(HFP_AG_OUTGOING_CALL_INITIATED_BY_HF, 0, 0, (const char *) &hfp_connection->line_buffer[3]);
|
||
|
||
hfp_connection->call_state = HFP_CALL_OUTGOING_INITIATED;
|
||
|
||
hfp_emit_string_event(hfp_connection, HFP_SUBEVENT_PLACE_CALL_WITH_NUMBER, (const char *) &hfp_connection->line_buffer[3]);
|
||
break;
|
||
|
||
case HFP_AG_OUTGOING_CALL_INITIATED_BY_AG:
|
||
// directly reject call if number of free slots is exceeded
|
||
if (!hfp_gsm_call_possible()) {
|
||
// TODO: no error for user
|
||
break;
|
||
}
|
||
switch (hfp_gsm_call_status()) {
|
||
case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS:
|
||
switch (hfp_gsm_callsetup_status()) {
|
||
case HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS:
|
||
// note: number not used currently
|
||
hfp_gsm_handler(HFP_AG_OUTGOING_CALL_INITIATED_BY_AG, 0, 0, "1234567");
|
||
// init call state for all connections
|
||
hfp_ag_trigger_outgoing_call();
|
||
// get first one and accept call
|
||
hfp_connection = hfp_ag_connection_for_call_state(HFP_CALL_OUTGOING_INITIATED);
|
||
if (hfp_connection) {
|
||
hfp_ag_handle_outgoing_call_accepted(hfp_connection);
|
||
}
|
||
break;
|
||
default:
|
||
// TODO: no error for user
|
||
break;
|
||
}
|
||
break;
|
||
default:
|
||
// TODO: no error for user
|
||
break;
|
||
}
|
||
break;
|
||
case HFP_AG_OUTGOING_REDIAL_INITIATED:{
|
||
// directly reject call if number of free slots is exceeded
|
||
if (!hfp_gsm_call_possible()){
|
||
hfp_connection->send_error = 1;
|
||
hfp_ag_run_for_context(hfp_connection);
|
||
break;
|
||
}
|
||
|
||
hfp_gsm_handler(HFP_AG_OUTGOING_REDIAL_INITIATED, 0, 0, NULL);
|
||
hfp_connection->call_state = HFP_CALL_OUTGOING_INITIATED;
|
||
|
||
log_info("Redial last number");
|
||
char * last_dialed_number = hfp_gsm_last_dialed_number();
|
||
|
||
if (strlen(last_dialed_number) > 0){
|
||
log_info("Last number exists: accept call");
|
||
hfp_emit_string_event(hfp_connection, HFP_SUBEVENT_PLACE_CALL_WITH_NUMBER, last_dialed_number);
|
||
} else {
|
||
log_info("log_infoLast number missing: reject call");
|
||
hfp_ag_handle_reject_outgoing_call();
|
||
}
|
||
break;
|
||
}
|
||
case HFP_AG_OUTGOING_CALL_REJECTED:
|
||
hfp_ag_handle_reject_outgoing_call();
|
||
break;
|
||
|
||
case HFP_AG_OUTGOING_CALL_ACCEPTED:{
|
||
hfp_connection = hfp_ag_connection_for_call_state(HFP_CALL_OUTGOING_INITIATED);
|
||
if (!hfp_connection){
|
||
log_info("hfp_ag_call_sm: did not find outgoing hfp_connection in initiated state");
|
||
break;
|
||
}
|
||
|
||
hfp_connection->ok_pending = 1;
|
||
hfp_ag_handle_outgoing_call_accepted(hfp_connection);
|
||
break;
|
||
}
|
||
case HFP_AG_OUTGOING_CALL_RINGING:
|
||
hfp_connection = hfp_ag_connection_for_call_state(HFP_CALL_OUTGOING_DIALING);
|
||
if (!hfp_connection){
|
||
log_info("hfp_ag_call_sm: did not find outgoing hfp_connection in dialing state");
|
||
break;
|
||
}
|
||
|
||
hfp_gsm_handler(HFP_AG_OUTGOING_CALL_RINGING, 0, 0, NULL);
|
||
hfp_connection->call_state = HFP_CALL_OUTGOING_RINGING;
|
||
hfp_ag_set_callsetup_indicator();
|
||
hfp_ag_transfer_callsetup_state();
|
||
hfp_ag_hf_start_ringing_outgoing(hfp_connection);
|
||
break;
|
||
|
||
case HFP_AG_OUTGOING_CALL_ESTABLISHED:{
|
||
// get outgoing call
|
||
hfp_connection = hfp_ag_connection_for_call_state(HFP_CALL_OUTGOING_RINGING);
|
||
if (!hfp_connection){
|
||
hfp_connection = hfp_ag_connection_for_call_state(HFP_CALL_OUTGOING_DIALING);
|
||
}
|
||
if (!hfp_connection){
|
||
log_info("hfp_ag_call_sm: did not find outgoing hfp_connection");
|
||
break;
|
||
}
|
||
|
||
bool callheld_status_call_on_hold_and_no_active_calls = hfp_gsm_callheld_status() == HFP_CALLHELD_STATUS_CALL_ON_HOLD_AND_NO_ACTIVE_CALLS;
|
||
hfp_gsm_handler(HFP_AG_OUTGOING_CALL_ESTABLISHED, 0, 0, NULL);
|
||
hfp_connection->call_state = HFP_CALL_ACTIVE;
|
||
hfp_ag_set_callsetup_indicator();
|
||
hfp_ag_set_call_indicator();
|
||
hfp_ag_transfer_call_state();
|
||
hfp_ag_transfer_callsetup_state();
|
||
if (callheld_status_call_on_hold_and_no_active_calls){
|
||
hfp_ag_set_callheld_indicator();
|
||
hfp_ag_transfer_callheld_state();
|
||
}
|
||
hfp_ag_hf_stop_ringing(hfp_connection);
|
||
hfp_emit_simple_event(hfp_connection, HFP_SUBEVENT_CALL_ANSWERED);
|
||
break;
|
||
}
|
||
|
||
case HFP_AG_CALL_HOLD_USER_BUSY:
|
||
hfp_gsm_handler(HFP_AG_CALL_HOLD_USER_BUSY, 0, 0, NULL);
|
||
hfp_ag_set_callsetup_indicator();
|
||
hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callsetup_indicator_index, 1);
|
||
hfp_connection->call_state = HFP_CALL_ACTIVE;
|
||
log_info("AG: Call Waiting, User Busy");
|
||
break;
|
||
|
||
case HFP_AG_CALL_HOLD_RELEASE_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL:{
|
||
int call_setup_in_progress = hfp_gsm_callsetup_status() != HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS;
|
||
int call_held = hfp_gsm_callheld_status() != HFP_CALLHELD_STATUS_NO_CALLS_HELD;
|
||
|
||
// Releases all active calls (if any exist) and accepts the other (held or waiting) call.
|
||
if (call_held || call_setup_in_progress){
|
||
hfp_gsm_handler(HFP_AG_CALL_HOLD_RELEASE_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL, hfp_connection->call_index,
|
||
0, NULL);
|
||
|
||
}
|
||
|
||
if (call_setup_in_progress){
|
||
log_info("AG: Call Dropped, Accept new call");
|
||
hfp_ag_set_callsetup_indicator();
|
||
hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callsetup_indicator_index, 1);
|
||
} else {
|
||
log_info("AG: Call Dropped, Resume held call");
|
||
}
|
||
if (call_held){
|
||
hfp_ag_set_callheld_indicator();
|
||
hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callheld_indicator_index, 1);
|
||
}
|
||
|
||
hfp_connection->call_state = HFP_CALL_ACTIVE;
|
||
break;
|
||
}
|
||
|
||
case HFP_AG_CALL_HOLD_PARK_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL:{
|
||
// Places all active calls (if any exist) on hold and accepts the other (held or waiting) call.
|
||
// only update if callsetup changed
|
||
int call_setup_in_progress = hfp_gsm_callsetup_status() != HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS;
|
||
hfp_gsm_handler(HFP_AG_CALL_HOLD_PARK_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL, hfp_connection->call_index, 0,
|
||
NULL);
|
||
|
||
if (call_setup_in_progress){
|
||
log_info("AG: Call on Hold, Accept new call");
|
||
hfp_ag_set_callsetup_indicator();
|
||
hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callsetup_indicator_index, 1);
|
||
} else {
|
||
log_info("AG: Swap calls");
|
||
}
|
||
|
||
hfp_ag_set_callheld_indicator();
|
||
// hfp_ag_set_callheld_state(HFP_CALLHELD_STATUS_CALL_ON_HOLD_OR_SWAPPED);
|
||
hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callheld_indicator_index, 1);
|
||
hfp_connection->call_state = HFP_CALL_ACTIVE;
|
||
break;
|
||
}
|
||
|
||
case HFP_AG_CALL_HOLD_ADD_HELD_CALL:
|
||
// Adds a held call to the conversation.
|
||
if (hfp_gsm_callheld_status() != HFP_CALLHELD_STATUS_NO_CALLS_HELD){
|
||
log_info("AG: Join 3-way-call");
|
||
hfp_gsm_handler(HFP_AG_CALL_HOLD_ADD_HELD_CALL, 0, 0, NULL);
|
||
hfp_ag_set_callheld_indicator();
|
||
hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callheld_indicator_index, 1);
|
||
hfp_emit_simple_event(hfp_connection, HFP_SUBEVENT_CONFERENCE_CALL);
|
||
}
|
||
hfp_connection->call_state = HFP_CALL_ACTIVE;
|
||
break;
|
||
case HFP_AG_CALL_HOLD_EXIT_AND_JOIN_CALLS:
|
||
// Connects the two calls and disconnects the subscriber from both calls (Explicit Call Transfer)
|
||
hfp_gsm_handler(HFP_AG_CALL_HOLD_EXIT_AND_JOIN_CALLS, 0, 0, NULL);
|
||
log_info("AG: Transfer call -> Connect two calls and disconnect");
|
||
hfp_ag_set_call_indicator();
|
||
hfp_ag_set_callheld_indicator();
|
||
hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, call_indicator_index, 1);
|
||
hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callheld_indicator_index, 1);
|
||
hfp_connection->call_state = HFP_CALL_IDLE;
|
||
break;
|
||
|
||
default:
|
||
break;
|
||
}
|
||
|
||
|
||
}
|
||
|
||
|
||
static void hfp_ag_send_call_status(hfp_connection_t * hfp_connection, int call_index){
|
||
hfp_gsm_call_t * active_call = hfp_gsm_call(call_index);
|
||
if (!active_call) return;
|
||
|
||
int idx = active_call->index;
|
||
hfp_enhanced_call_dir_t dir = active_call->direction;
|
||
hfp_enhanced_call_status_t status = active_call->enhanced_status;
|
||
hfp_enhanced_call_mode_t mode = active_call->mode;
|
||
hfp_enhanced_call_mpty_t mpty = active_call->mpty;
|
||
uint8_t type = active_call->clip_type;
|
||
char * number = active_call->clip_number;
|
||
|
||
char buffer[100];
|
||
// TODO: check length of a buffer, to fit the MTU
|
||
int offset = snprintf(buffer, sizeof(buffer), "\r\n%s: %d,%d,%d,%d,%d", HFP_LIST_CURRENT_CALLS, idx, dir, status, mode, mpty);
|
||
if (number){
|
||
offset += snprintf(buffer+offset, sizeof(buffer)-offset-3, ", \"%s\",%u", number, type);
|
||
}
|
||
snprintf(buffer+offset, sizeof(buffer)-offset, "\r\n");
|
||
log_info("hfp_ag_send_current_call_status 000 index %d, dir %d, status %d, mode %d, mpty %d, type %d, number %s", idx, dir, status,
|
||
mode, mpty, type, number);
|
||
send_str_over_rfcomm(hfp_connection->rfcomm_cid, buffer);
|
||
}
|
||
|
||
// sends pending command, returns if command was sent
|
||
static int hfp_ag_send_commands(hfp_connection_t *hfp_connection){
|
||
if (hfp_connection->send_status_of_current_calls){
|
||
hfp_connection->ok_pending = 0;
|
||
if (hfp_connection->next_call_index < hfp_gsm_get_number_of_calls()){
|
||
hfp_connection->next_call_index++;
|
||
hfp_ag_send_call_status(hfp_connection, hfp_connection->next_call_index);
|
||
return 1;
|
||
} else {
|
||
// TODO: this code should be removed. check a) before setting send_status_of_current_calls, or b) right before hfp_ag_send_call_status above
|
||
hfp_connection->next_call_index = 0;
|
||
hfp_connection->ok_pending = 1;
|
||
hfp_connection->send_status_of_current_calls = 0;
|
||
}
|
||
}
|
||
|
||
if (hfp_connection->ag_notify_incoming_call_waiting){
|
||
hfp_connection->ag_notify_incoming_call_waiting = 0;
|
||
hfp_ag_send_call_waiting_notification(hfp_connection->rfcomm_cid);
|
||
return 1;
|
||
}
|
||
|
||
if (hfp_connection->send_error){
|
||
hfp_connection->send_error = 0;
|
||
hfp_connection->command = HFP_CMD_NONE;
|
||
hfp_ag_send_error(hfp_connection->rfcomm_cid);
|
||
return 1;
|
||
}
|
||
|
||
// note: before update AG indicators and ok_pending
|
||
if (hfp_connection->send_response_and_hold_status){
|
||
int status = hfp_connection->send_response_and_hold_status - 1;
|
||
hfp_connection->send_response_and_hold_status = 0;
|
||
hfp_ag_send_set_response_and_hold(hfp_connection->rfcomm_cid, status);
|
||
return 1;
|
||
}
|
||
|
||
// note: before ok_pending and send_error to allow for unsolicited result on custom command
|
||
if (hfp_connection->send_custom_message != NULL){
|
||
const char * message = hfp_connection->send_custom_message;
|
||
hfp_connection->send_custom_message = NULL;
|
||
send_str_over_rfcomm(hfp_connection->rfcomm_cid, message);
|
||
hfp_emit_event(hfp_connection, HFP_SUBEVENT_CUSTOM_AT_MESSAGE_SENT, ERROR_CODE_SUCCESS);
|
||
return 1;
|
||
}
|
||
|
||
if (hfp_connection->ok_pending){
|
||
hfp_connection->ok_pending = 0;
|
||
hfp_connection->command = HFP_CMD_NONE;
|
||
hfp_ag_send_ok(hfp_connection->rfcomm_cid);
|
||
return 1;
|
||
}
|
||
|
||
// update AG indicators only if enabled by AT+CMER=3,0,0,1
|
||
if ((hfp_connection->enable_status_update_for_ag_indicators == 1) && (hfp_connection->ag_indicators_status_update_bitmap != 0)){
|
||
uint16_t i;
|
||
for (i=0;i<hfp_connection->ag_indicators_nr;i++){
|
||
if (get_bit(hfp_connection->ag_indicators_status_update_bitmap, i)){
|
||
hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, i, 0);
|
||
hfp_ag_send_transfer_ag_indicators_status_cmd(hfp_connection->rfcomm_cid, &hfp_ag_indicators[i]);
|
||
return 1;
|
||
}
|
||
}
|
||
}
|
||
|
||
if (hfp_connection->ag_send_no_carrier){
|
||
hfp_connection->ag_send_no_carrier = false;
|
||
hfp_ag_send_no_carrier(hfp_connection->rfcomm_cid);
|
||
return 1;
|
||
}
|
||
|
||
if (hfp_connection->send_phone_number_for_voice_tag){
|
||
hfp_connection->send_phone_number_for_voice_tag = 0;
|
||
hfp_connection->command = HFP_CMD_NONE;
|
||
hfp_connection->ok_pending = 1;
|
||
hfp_ag_send_phone_number_for_voice_tag_cmd(hfp_connection->rfcomm_cid);
|
||
return 1;
|
||
}
|
||
|
||
if (hfp_connection->send_subscriber_number){
|
||
if (hfp_connection->next_subscriber_number_to_send < hfp_ag_subscriber_numbers_count){
|
||
hfp_phone_number_t phone = hfp_ag_subscriber_numbers[hfp_connection->next_subscriber_number_to_send++];
|
||
hfp_send_subscriber_number_cmd(hfp_connection->rfcomm_cid, phone.type, phone.number);
|
||
} else {
|
||
hfp_connection->send_subscriber_number = 0;
|
||
hfp_connection->next_subscriber_number_to_send = 0;
|
||
hfp_ag_send_ok(hfp_connection->rfcomm_cid);
|
||
}
|
||
hfp_connection->command = HFP_CMD_NONE;
|
||
return 1;
|
||
}
|
||
|
||
if (hfp_connection->send_microphone_gain){
|
||
hfp_connection->send_microphone_gain = 0;
|
||
hfp_connection->command = HFP_CMD_NONE;
|
||
hfp_ag_send_set_microphone_gain_cmd(hfp_connection->rfcomm_cid, hfp_connection->microphone_gain);
|
||
return 1;
|
||
}
|
||
|
||
if (hfp_connection->send_speaker_gain){
|
||
hfp_connection->send_speaker_gain = 0;
|
||
hfp_connection->command = HFP_CMD_NONE;
|
||
hfp_ag_send_set_speaker_gain_cmd(hfp_connection->rfcomm_cid, hfp_connection->speaker_gain);
|
||
return 1;
|
||
}
|
||
|
||
if (hfp_connection->send_ag_status_indicators){
|
||
hfp_connection->send_ag_status_indicators = 0;
|
||
hfp_ag_send_retrieve_indicators_status_cmd(hfp_connection->rfcomm_cid);
|
||
return 1;
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
// sends pending command, returns if command was sent
|
||
static int hfp_ag_run_ring_and_clip(hfp_connection_t *hfp_connection){
|
||
// delay RING/CLIP until audio connection has been established for incoming calls
|
||
// hfp_ag_hf_trigger_ring_and_clip is called in call_setup_state_machine
|
||
if (hfp_connection->call_state != HFP_CALL_W4_AUDIO_CONNECTION_FOR_IN_BAND_RING){
|
||
if (hfp_connection->ag_ring){
|
||
hfp_connection->ag_ring = 0;
|
||
hfp_connection->command = HFP_CMD_NONE;
|
||
hfp_emit_simple_event(hfp_connection, HFP_SUBEVENT_RING);
|
||
hfp_ag_send_ring(hfp_connection->rfcomm_cid);
|
||
return 1;
|
||
}
|
||
|
||
if (hfp_connection->ag_send_clip){
|
||
hfp_connection->ag_send_clip = 0;
|
||
hfp_connection->command = HFP_CMD_NONE;
|
||
hfp_ag_send_clip(hfp_connection->rfcomm_cid);
|
||
return 1;
|
||
}
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
static void hfp_ag_run_for_context(hfp_connection_t *hfp_connection){
|
||
|
||
btstack_assert(hfp_connection != NULL);
|
||
btstack_assert(hfp_connection->local_role == HFP_ROLE_AG);
|
||
|
||
// during SDP query, RFCOMM CID is not set
|
||
if (hfp_connection->rfcomm_cid == 0) return;
|
||
|
||
if (hfp_connection->state == HFP_AUDIO_CONNECTION_ESTABLISHED && hfp_connection->emit_vra_enabled_after_audio_established){
|
||
hfp_connection->emit_vra_enabled_after_audio_established = false;
|
||
hfp_emit_voice_recognition_enabled(hfp_connection, ERROR_CODE_SUCCESS);
|
||
}
|
||
|
||
if ((hfp_connection->state == HFP_AUDIO_CONNECTION_ESTABLISHED) && hfp_connection->release_audio_connection){
|
||
hfp_connection->state = HFP_W4_SCO_DISCONNECTED;
|
||
hfp_connection->release_audio_connection = 0;
|
||
gap_disconnect(hfp_connection->sco_handle);
|
||
return;
|
||
}
|
||
|
||
// configure NBS/WBS if needed using vendor-specific HCI commands
|
||
if (hci_can_send_command_packet_now()) {
|
||
#ifdef ENABLE_CC256X_ASSISTED_HFP
|
||
// WBS Disassociate
|
||
if (hfp_connection->cc256x_send_wbs_disassociate){
|
||
hfp_connection->cc256x_send_wbs_disassociate = false;
|
||
hci_send_cmd(&hci_ti_wbs_disassociate);
|
||
return;
|
||
}
|
||
// Write Codec Config
|
||
if (hfp_connection->cc256x_send_write_codec_config){
|
||
hfp_connection->cc256x_send_write_codec_config = false;
|
||
hfp_cc256x_write_codec_config(hfp_connection);
|
||
return;
|
||
}
|
||
// WBS Associate
|
||
if (hfp_connection->cc256x_send_wbs_associate){
|
||
hfp_connection->cc256x_send_wbs_associate = false;
|
||
hci_send_cmd(&hci_ti_wbs_associate, hfp_connection->acl_handle);
|
||
return;
|
||
}
|
||
#endif
|
||
#ifdef ENABLE_BCM_PCM_WBS
|
||
// Enable WBS
|
||
if (hfp_connection->bcm_send_enable_wbs){
|
||
hfp_connection->bcm_send_enable_wbs = false;
|
||
hci_send_cmd(&hci_bcm_enable_wbs, 1, 2);
|
||
return;
|
||
}
|
||
// Write I2S/PCM params
|
||
if (hfp_connection->bcm_send_write_i2spcm_interface_param){
|
||
hfp_connection->bcm_send_write_i2spcm_interface_param = false;
|
||
hfp_bcm_write_i2spcm_interface_param(hfp_connection);
|
||
return;
|
||
}
|
||
// Disable WBS
|
||
if (hfp_connection->bcm_send_disable_wbs){
|
||
hfp_connection->bcm_send_disable_wbs = false;
|
||
hci_send_cmd(&hci_bcm_enable_wbs, 0, 2);
|
||
return;
|
||
}
|
||
#endif
|
||
#ifdef ENABLE_RTK_PCM_WBS
|
||
// Configure CVSD vs. mSBC
|
||
if (hfp_connection->rtk_send_sco_config){
|
||
hfp_connection->rtk_send_sco_config = false;
|
||
if (hfp_connection->negotiated_codec == HFP_CODEC_MSBC){
|
||
log_info("RTK SCO: 16k + mSBC");
|
||
hci_send_cmd(&hci_rtk_configure_sco_routing, 0x81, 0x90, 0x00, 0x00, 0x1a, 0x0c, 0x00, 0x00, 0x41);
|
||
} else {
|
||
log_info("RTK SCO: 16k + CVSD");
|
||
hci_send_cmd(&hci_rtk_configure_sco_routing, 0x81, 0x90, 0x00, 0x00, 0x1a, 0x0c, 0x0c, 0x00, 0x01);
|
||
}
|
||
return;
|
||
}
|
||
#endif
|
||
#ifdef ENABLE_NXP_PCM_WBS
|
||
if (hfp_connection->nxp_start_audio_handle != HCI_CON_HANDLE_INVALID){
|
||
hci_con_handle_t sco_handle = hfp_connection->nxp_start_audio_handle;
|
||
hfp_connection->nxp_start_audio_handle = HCI_CON_HANDLE_INVALID;
|
||
hci_send_cmd(&hci_nxp_host_pcm_i2s_audio_config, 0, 0, sco_handle, 0);
|
||
return;
|
||
}
|
||
if (hfp_connection->nxp_stop_audio_handle != HCI_CON_HANDLE_INVALID){
|
||
hci_con_handle_t sco_handle = hfp_connection->nxp_stop_audio_handle;
|
||
hfp_connection->nxp_stop_audio_handle = HCI_CON_HANDLE_INVALID;
|
||
hci_send_cmd(&hci_nxp_host_pcm_i2s_audio_config, 1, 0, sco_handle, 0);
|
||
return;
|
||
}
|
||
#endif
|
||
}
|
||
|
||
#if defined (ENABLE_CC256X_ASSISTED_HFP) || defined (ENABLE_BCM_PCM_WBS)
|
||
if (hfp_connection->state == HFP_W4_WBS_SHUTDOWN){
|
||
hfp_finalize_connection_context(hfp_connection);
|
||
return;
|
||
}
|
||
#endif
|
||
|
||
if (!rfcomm_can_send_packet_now(hfp_connection->rfcomm_cid)) {
|
||
log_info("hfp_ag_run_for_context: request can send for 0x%02x", hfp_connection->rfcomm_cid);
|
||
rfcomm_request_can_send_now_event(hfp_connection->rfcomm_cid);
|
||
return;
|
||
}
|
||
|
||
int cmd_sent = hfp_ag_send_commands(hfp_connection);
|
||
|
||
if (!cmd_sent){
|
||
cmd_sent = hfp_ag_run_for_context_service_level_connection(hfp_connection);
|
||
}
|
||
|
||
if (!cmd_sent){
|
||
cmd_sent = hfp_ag_run_for_context_service_level_connection_queries(hfp_connection);
|
||
}
|
||
|
||
if (!cmd_sent){
|
||
cmd_sent = call_setup_state_machine(hfp_connection);
|
||
}
|
||
|
||
if (!cmd_sent){
|
||
cmd_sent = hfp_ag_run_for_audio_connection(hfp_connection);
|
||
}
|
||
|
||
if (!cmd_sent){
|
||
cmd_sent = hfp_ag_run_ring_and_clip(hfp_connection);
|
||
}
|
||
|
||
if (!cmd_sent){
|
||
cmd_sent = hfp_ag_voice_recognition_state_machine(hfp_connection);
|
||
}
|
||
|
||
// disconnect
|
||
if (!cmd_sent && (hfp_connection->command == HFP_CMD_NONE) && (hfp_connection->state == HFP_W2_DISCONNECT_RFCOMM)){
|
||
hfp_connection->state = HFP_W4_RFCOMM_DISCONNECTED;
|
||
rfcomm_disconnect(hfp_connection->rfcomm_cid);
|
||
}
|
||
|
||
if (cmd_sent){
|
||
hfp_connection->command = HFP_CMD_NONE;
|
||
rfcomm_request_can_send_now_event(hfp_connection->rfcomm_cid);
|
||
}
|
||
}
|
||
|
||
static int hfp_parser_is_end_of_line(uint8_t byte){
|
||
return (byte == '\n') || (byte == '\r');
|
||
}
|
||
|
||
static void hfp_ag_handle_rfcomm_data(hfp_connection_t * hfp_connection, uint8_t *packet, uint16_t size){
|
||
// assertion: size >= 1 as rfcomm.c does not deliver empty packets
|
||
if (size < 1) return;
|
||
uint8_t status = ERROR_CODE_SUCCESS;
|
||
|
||
hfp_log_rfcomm_message("HFP_AG_RX", packet, size);
|
||
#ifdef ENABLE_HFP_AT_MESSAGES
|
||
hfp_emit_string_event(hfp_connection, HFP_SUBEVENT_AT_MESSAGE_RECEIVED, (char *) packet);
|
||
#endif
|
||
|
||
// process messages byte-wise
|
||
int pos;
|
||
for (pos = 0; pos < size ; pos++){
|
||
hfp_parse(hfp_connection, packet[pos], 0);
|
||
|
||
// parse until end of line
|
||
if (!hfp_parser_is_end_of_line(packet[pos])) continue;
|
||
|
||
hfp_generic_status_indicator_t * indicator;
|
||
switch(hfp_connection->command){
|
||
case HFP_CMD_HF_ACTIVATE_VOICE_RECOGNITION:
|
||
hfp_connection->command = HFP_CMD_NONE;
|
||
hfp_connection->ag_vra_requested_by_hf = true;
|
||
break;
|
||
case HFP_CMD_RESPONSE_AND_HOLD_QUERY:
|
||
hfp_connection->command = HFP_CMD_NONE;
|
||
if (hfp_ag_response_and_hold_active){
|
||
hfp_connection->send_response_and_hold_status = HFP_RESPONSE_AND_HOLD_INCOMING_ON_HOLD + 1;
|
||
}
|
||
hfp_connection->ok_pending = 1;
|
||
break;
|
||
case HFP_CMD_RESPONSE_AND_HOLD_COMMAND:
|
||
hfp_connection->command = HFP_CMD_NONE;
|
||
switch(hfp_connection->ag_response_and_hold_action){
|
||
case HFP_RESPONSE_AND_HOLD_INCOMING_ON_HOLD:
|
||
hfp_ag_call_sm(HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_HF, hfp_connection);
|
||
break;
|
||
case HFP_RESPONSE_AND_HOLD_HELD_INCOMING_ACCEPTED:
|
||
hfp_ag_call_sm(HFP_AG_RESPONSE_AND_HOLD_ACCEPT_HELD_CALL_BY_HF, hfp_connection);
|
||
break;
|
||
case HFP_RESPONSE_AND_HOLD_HELD_INCOMING_REJECTED:
|
||
hfp_ag_call_sm(HFP_AG_RESPONSE_AND_HOLD_REJECT_HELD_CALL_BY_HF, hfp_connection);
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
hfp_connection->ok_pending = 1;
|
||
break;
|
||
case HFP_CMD_HF_INDICATOR_STATUS:
|
||
hfp_connection->command = HFP_CMD_NONE;
|
||
|
||
if (hfp_connection->parser_indicator_index < hfp_ag_generic_status_indicators_nr){
|
||
indicator = &hfp_ag_generic_status_indicators[hfp_connection->parser_indicator_index];
|
||
switch (indicator->uuid){
|
||
case HFP_HF_INDICATOR_UUID_ENHANCED_SAFETY:
|
||
if (hfp_connection->parser_indicator_value > 1) {
|
||
hfp_connection->send_error = 1;
|
||
break;
|
||
}
|
||
hfp_connection->ok_pending = 1;
|
||
hfp_ag_emit_hf_indicator_value(hfp_connection, indicator->uuid, hfp_connection->parser_indicator_value);
|
||
break;
|
||
case HFP_HF_INDICATOR_UUID_BATTERY_LEVEL:
|
||
if (hfp_connection->parser_indicator_value > 100){
|
||
hfp_connection->send_error = 1;
|
||
break;
|
||
}
|
||
hfp_connection->ok_pending = 1;
|
||
hfp_ag_emit_hf_indicator_value(hfp_connection, indicator->uuid, hfp_connection->parser_indicator_value);
|
||
break;
|
||
default:
|
||
hfp_connection->send_error = 1;
|
||
break;
|
||
}
|
||
} else {
|
||
hfp_connection->send_error = 1;
|
||
}
|
||
break;
|
||
case HFP_CMD_RETRIEVE_AG_INDICATORS_STATUS:
|
||
// expected by SLC state machine
|
||
if (hfp_connection->state < HFP_SERVICE_LEVEL_CONNECTION_ESTABLISHED) break;
|
||
hfp_connection->send_ag_indicators_segment = 0;
|
||
hfp_connection->send_ag_status_indicators = 1;
|
||
break;
|
||
case HFP_CMD_LIST_CURRENT_CALLS:
|
||
hfp_connection->command = HFP_CMD_NONE;
|
||
hfp_connection->next_call_index = 0;
|
||
hfp_connection->send_status_of_current_calls = 1;
|
||
break;
|
||
case HFP_CMD_GET_SUBSCRIBER_NUMBER_INFORMATION:
|
||
hfp_connection->command = HFP_CMD_NONE;
|
||
if (hfp_ag_subscriber_numbers_count == 0){
|
||
hfp_ag_send_ok(hfp_connection->rfcomm_cid);
|
||
break;
|
||
}
|
||
hfp_connection->next_subscriber_number_to_send = 0;
|
||
hfp_connection->send_subscriber_number = 1;
|
||
break;
|
||
case HFP_CMD_TRANSMIT_DTMF_CODES:
|
||
{
|
||
hfp_connection->command = HFP_CMD_NONE;
|
||
char buffer[2];
|
||
buffer[0] = (char) hfp_connection->ag_dtmf_code;
|
||
buffer[1] = 0;
|
||
hfp_emit_string_event(hfp_connection, HFP_SUBEVENT_TRANSMIT_DTMF_CODES, buffer);
|
||
break;
|
||
}
|
||
case HFP_CMD_HF_REQUEST_PHONE_NUMBER:
|
||
hfp_connection->command = HFP_CMD_NONE;
|
||
hfp_emit_simple_event(hfp_connection, HFP_SUBEVENT_ATTACH_NUMBER_TO_VOICE_TAG);
|
||
break;
|
||
case HFP_CMD_TURN_OFF_EC_AND_NR:
|
||
hfp_connection->command = HFP_CMD_NONE;
|
||
|
||
if (get_bit(hfp_ag_supported_features, HFP_AGSF_EC_NR_FUNCTION)){
|
||
hfp_connection->ok_pending = 1;
|
||
status = ERROR_CODE_SUCCESS;
|
||
} else {
|
||
hfp_connection->send_error = 1;
|
||
status = ERROR_CODE_UNSUPPORTED_FEATURE_OR_PARAMETER_VALUE;
|
||
}
|
||
hfp_emit_event(hfp_connection, HFP_SUBEVENT_ECHO_CANCELING_AND_NOISE_REDUCTION_DEACTIVATE, status);
|
||
break;
|
||
case HFP_CMD_CALL_ANSWERED:
|
||
hfp_connection->command = HFP_CMD_NONE;
|
||
log_info("HFP: ATA");
|
||
hfp_ag_call_sm(HFP_AG_INCOMING_CALL_ACCEPTED_BY_HF, hfp_connection);
|
||
break;
|
||
case HFP_CMD_HANG_UP_CALL:
|
||
hfp_connection->command = HFP_CMD_NONE;
|
||
hfp_connection->ok_pending = 1;
|
||
hfp_ag_call_sm(HFP_AG_TERMINATE_CALL_BY_HF, hfp_connection);
|
||
break;
|
||
case HFP_CMD_CALL_HOLD: {
|
||
hfp_connection->command = HFP_CMD_NONE;
|
||
hfp_connection->ok_pending = 1;
|
||
|
||
switch (hfp_connection->ag_call_hold_action){
|
||
case 0:
|
||
// Releases all held calls or sets User Determined User Busy (UDUB) for a waiting call.
|
||
hfp_ag_call_sm(HFP_AG_CALL_HOLD_USER_BUSY, hfp_connection);
|
||
break;
|
||
case 1:
|
||
// Releases all active calls (if any exist) and accepts the other (held or waiting) call.
|
||
// Where both a held and a waiting call exist, the above procedures shall apply to the
|
||
// waiting call (i.e., not to the held call) in conflicting situation.
|
||
hfp_ag_call_sm(HFP_AG_CALL_HOLD_RELEASE_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL, hfp_connection);
|
||
break;
|
||
case 2:
|
||
// Places all active calls (if any exist) on hold and accepts the other (held or waiting) call.
|
||
// Where both a held and a waiting call exist, the above procedures shall apply to the
|
||
// waiting call (i.e., not to the held call) in conflicting situation.
|
||
hfp_ag_call_sm(HFP_AG_CALL_HOLD_PARK_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL, hfp_connection);
|
||
break;
|
||
case 3:
|
||
// Adds a held call to the conversation.
|
||
hfp_ag_call_sm(HFP_AG_CALL_HOLD_ADD_HELD_CALL, hfp_connection);
|
||
break;
|
||
case 4:
|
||
// Connects the two calls and disconnects the subscriber from both calls (Explicit Call Transfer).
|
||
hfp_ag_call_sm(HFP_AG_CALL_HOLD_EXIT_AND_JOIN_CALLS, hfp_connection);
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
hfp_connection->call_index = 0;
|
||
break;
|
||
}
|
||
case HFP_CMD_CALL_PHONE_NUMBER:
|
||
hfp_connection->command = HFP_CMD_NONE;
|
||
hfp_ag_call_sm(HFP_AG_OUTGOING_CALL_INITIATED_BY_HF, hfp_connection);
|
||
break;
|
||
case HFP_CMD_REDIAL_LAST_NUMBER:
|
||
hfp_connection->command = HFP_CMD_NONE;
|
||
hfp_ag_call_sm(HFP_AG_OUTGOING_REDIAL_INITIATED, hfp_connection);
|
||
break;
|
||
case HFP_CMD_ENABLE_CLIP:
|
||
hfp_connection->command = HFP_CMD_NONE;
|
||
log_info("hfp: clip set, now: %u", hfp_connection->clip_enabled);
|
||
hfp_connection->ok_pending = 1;
|
||
break;
|
||
case HFP_CMD_ENABLE_CALL_WAITING_NOTIFICATION:
|
||
hfp_connection->command = HFP_CMD_NONE;
|
||
log_info("hfp: call waiting notification set, now: %u", hfp_connection->call_waiting_notification_enabled);
|
||
hfp_connection->ok_pending = 1;
|
||
break;
|
||
case HFP_CMD_SET_SPEAKER_GAIN:
|
||
hfp_connection->command = HFP_CMD_NONE;
|
||
hfp_connection->ok_pending = 1;
|
||
log_info("HF speaker gain = %u", hfp_connection->speaker_gain);
|
||
hfp_emit_event(hfp_connection, HFP_SUBEVENT_SPEAKER_VOLUME, hfp_connection->speaker_gain);
|
||
break;
|
||
case HFP_CMD_SET_MICROPHONE_GAIN:
|
||
hfp_connection->command = HFP_CMD_NONE;
|
||
hfp_connection->ok_pending = 1;
|
||
log_info("HF microphone gain = %u", hfp_connection->microphone_gain);
|
||
hfp_emit_event(hfp_connection, HFP_SUBEVENT_MICROPHONE_VOLUME, hfp_connection->microphone_gain);
|
||
break;
|
||
case HFP_CMD_CUSTOM_MESSAGE:
|
||
hfp_connection->command = HFP_CMD_NONE;
|
||
hfp_parser_reset_line_buffer(hfp_connection);
|
||
log_info("Custom AT Command ID 0x%04x", hfp_connection->custom_at_command_id);
|
||
hfp_ag_emit_custom_command_event(hfp_connection);
|
||
break;
|
||
case HFP_CMD_UNKNOWN:
|
||
hfp_connection->command = HFP_CMD_NONE;
|
||
hfp_connection->send_error = 1;
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
static void hfp_ag_run(void){
|
||
btstack_linked_list_iterator_t it;
|
||
btstack_linked_list_iterator_init(&it, hfp_get_connections());
|
||
while (btstack_linked_list_iterator_has_next(&it)){
|
||
hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it);
|
||
if (hfp_connection->local_role != HFP_ROLE_AG) continue;
|
||
hfp_ag_run_for_context(hfp_connection);
|
||
}
|
||
}
|
||
|
||
static void hfp_ag_rfcomm_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){
|
||
hfp_connection_t * hfp_connection = NULL;
|
||
switch (packet_type){
|
||
case RFCOMM_DATA_PACKET:
|
||
hfp_connection = get_hfp_connection_context_for_rfcomm_cid(channel);
|
||
btstack_assert(hfp_connection != NULL);
|
||
|
||
hfp_ag_handle_rfcomm_data(hfp_connection, packet, size);
|
||
hfp_ag_run_for_context(hfp_connection);
|
||
return;
|
||
case HCI_EVENT_PACKET:
|
||
if (packet[0] == RFCOMM_EVENT_CAN_SEND_NOW){
|
||
uint16_t rfcomm_cid = rfcomm_event_can_send_now_get_rfcomm_cid(packet);
|
||
hfp_connection = get_hfp_connection_context_for_rfcomm_cid(rfcomm_cid);
|
||
btstack_assert(hfp_connection != NULL);
|
||
|
||
hfp_ag_run_for_context(hfp_connection);
|
||
return;
|
||
}
|
||
hfp_handle_rfcomm_event(packet_type, channel, packet, size, HFP_ROLE_AG);
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
|
||
hfp_ag_run();
|
||
}
|
||
|
||
static void hfp_ag_hci_event_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){
|
||
hfp_handle_hci_event(packet_type, channel, packet, size, HFP_ROLE_AG);
|
||
hfp_ag_run();
|
||
}
|
||
|
||
void hfp_ag_init_codecs(uint8_t codecs_nr, const uint8_t * codecs){
|
||
btstack_assert(codecs_nr <= HFP_MAX_NUM_CODECS);
|
||
|
||
hfp_ag_codecs_nr = codecs_nr;
|
||
uint8_t i;
|
||
for (i=0; i < codecs_nr; i++){
|
||
hfp_ag_codecs[i] = codecs[i];
|
||
}
|
||
}
|
||
|
||
void hfp_ag_init_supported_features(uint32_t supported_features){
|
||
hfp_ag_supported_features = supported_features;
|
||
hfp_ag_in_band_ring_tone_active = has_in_band_ring_tone();
|
||
}
|
||
|
||
void hfp_ag_init_ag_indicators(int ag_indicators_nr, const hfp_ag_indicator_t * ag_indicators){
|
||
hfp_ag_indicators_nr = ag_indicators_nr;
|
||
(void)memcpy(hfp_ag_indicators, ag_indicators,
|
||
ag_indicators_nr * sizeof(hfp_ag_indicator_t));
|
||
}
|
||
|
||
void hfp_ag_init_hf_indicators(int hf_indicators_nr, const hfp_generic_status_indicator_t * hf_indicators){
|
||
if (hf_indicators_nr > HFP_MAX_NUM_INDICATORS) return;
|
||
hfp_ag_generic_status_indicators_nr = hf_indicators_nr;
|
||
(void)memcpy(hfp_ag_generic_status_indicators, hf_indicators,
|
||
hf_indicators_nr * sizeof(hfp_generic_status_indicator_t));
|
||
}
|
||
|
||
void hfp_ag_init_call_hold_services(int call_hold_services_nr, const char * call_hold_services[]){
|
||
hfp_ag_call_hold_services_nr = call_hold_services_nr;
|
||
(void)memcpy(hfp_ag_call_hold_services, call_hold_services,
|
||
call_hold_services_nr * sizeof(char *));
|
||
}
|
||
|
||
|
||
void hfp_ag_init(uint8_t rfcomm_channel_nr){
|
||
|
||
hfp_init();
|
||
hfp_ag_call_hold_services_nr = 0;
|
||
hfp_ag_response_and_hold_active = false;
|
||
hfp_ag_indicators_nr = 0;
|
||
hfp_ag_codecs_nr = 0;
|
||
hfp_ag_supported_features = HFP_DEFAULT_AG_SUPPORTED_FEATURES;
|
||
hfp_ag_in_band_ring_tone_active = has_in_band_ring_tone();
|
||
hfp_ag_subscriber_numbers = NULL;
|
||
hfp_ag_subscriber_numbers_count = 0;
|
||
|
||
hfp_ag_hci_event_callback_registration.callback = &hfp_ag_hci_event_packet_handler;
|
||
hci_add_event_handler(&hfp_ag_hci_event_callback_registration);
|
||
|
||
rfcomm_register_service(&hfp_ag_rfcomm_packet_handler, rfcomm_channel_nr, 0xffff);
|
||
|
||
// used to set packet handler for outgoing rfcomm connections - could be handled by emitting an event to us
|
||
hfp_set_ag_rfcomm_packet_handler(&hfp_ag_rfcomm_packet_handler);
|
||
|
||
hfp_gsm_init();
|
||
}
|
||
|
||
void hfp_ag_deinit(void){
|
||
hfp_deinit();
|
||
hfp_gsm_deinit();
|
||
|
||
hfp_ag_callback = NULL;
|
||
hfp_ag_supported_features = 0;
|
||
hfp_ag_codecs_nr = 0;
|
||
hfp_ag_indicators_nr = 0;
|
||
hfp_ag_call_hold_services_nr = 0;
|
||
(void) memset(&hfp_ag_call_hold_services, 0, sizeof(hfp_ag_call_hold_services));
|
||
hfp_ag_response_and_hold_state = HFP_RESPONSE_AND_HOLD_INCOMING_ON_HOLD;
|
||
(void) memset(&hfp_ag_response_and_hold_state, 0, sizeof(hfp_response_and_hold_state_t));
|
||
hfp_ag_subscriber_numbers = NULL;
|
||
(void) memset(&hfp_ag_hci_event_callback_registration, 0, sizeof(btstack_packet_callback_registration_t));
|
||
hfp_ag_custom_call_sm_handler = NULL;
|
||
}
|
||
|
||
uint8_t hfp_ag_establish_service_level_connection(bd_addr_t bd_addr){
|
||
return hfp_establish_service_level_connection(bd_addr, BLUETOOTH_SERVICE_CLASS_HANDSFREE, HFP_ROLE_AG);
|
||
}
|
||
|
||
uint8_t hfp_ag_release_service_level_connection(hci_con_handle_t acl_handle){
|
||
hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle);
|
||
if (!hfp_connection){
|
||
return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
|
||
}
|
||
|
||
hfp_trigger_release_service_level_connection(hfp_connection);
|
||
hfp_ag_run_for_context(hfp_connection);
|
||
return ERROR_CODE_SUCCESS;
|
||
}
|
||
|
||
uint8_t hfp_ag_report_extended_audio_gateway_error_result_code(hci_con_handle_t acl_handle, hfp_cme_error_t error){
|
||
hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle);
|
||
if (!hfp_connection){
|
||
return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
|
||
}
|
||
|
||
hfp_connection->extended_audio_gateway_error = 0;
|
||
if (!hfp_connection->enable_extended_audio_gateway_error_report){
|
||
return ERROR_CODE_COMMAND_DISALLOWED;
|
||
}
|
||
|
||
hfp_connection->extended_audio_gateway_error = error;
|
||
hfp_ag_run_for_context(hfp_connection);
|
||
return ERROR_CODE_SUCCESS;
|
||
}
|
||
|
||
static uint8_t hfp_ag_setup_audio_connection(hfp_connection_t * hfp_connection){
|
||
if (hfp_connection->state == HFP_AUDIO_CONNECTION_ESTABLISHED){
|
||
return ERROR_CODE_COMMAND_DISALLOWED;
|
||
}
|
||
if (hfp_connection->state >= HFP_W2_DISCONNECT_SCO){
|
||
return ERROR_CODE_COMMAND_DISALLOWED;
|
||
}
|
||
|
||
hfp_connection->establish_audio_connection = 1;
|
||
if (!has_codec_negotiation_feature(hfp_connection)){
|
||
log_info("hfp_ag_establish_audio_connection - no codec negotiation feature, using CVSD");
|
||
hfp_connection->negotiated_codec = HFP_CODEC_CVSD;
|
||
hfp_connection->codecs_state = HFP_CODECS_EXCHANGED;
|
||
// now, pick link settings
|
||
hfp_init_link_settings(hfp_connection, hfp_ag_esco_s4_supported(hfp_connection));
|
||
#ifdef ENABLE_CC256X_ASSISTED_HFP
|
||
hfp_cc256x_prepare_for_sco(hfp_connection);
|
||
#endif
|
||
return ERROR_CODE_SUCCESS;
|
||
}
|
||
|
||
uint8_t i;
|
||
bool codec_was_in_use = false;
|
||
bool better_codec_can_be_used = false;
|
||
|
||
for (i = 0; i<hfp_connection->remote_codecs_nr; i++){
|
||
if (hfp_connection->negotiated_codec == hfp_connection->remote_codecs[i]){
|
||
codec_was_in_use = true;
|
||
} else if (hfp_connection->negotiated_codec < hfp_connection->remote_codecs[i]){
|
||
better_codec_can_be_used = true;
|
||
}
|
||
}
|
||
|
||
if (!codec_was_in_use || better_codec_can_be_used){
|
||
hfp_connection->ag_send_common_codec = true;
|
||
hfp_connection->codecs_state = HFP_CODECS_IDLE;
|
||
}
|
||
return ERROR_CODE_SUCCESS;
|
||
}
|
||
|
||
uint8_t hfp_ag_establish_audio_connection(hci_con_handle_t acl_handle){
|
||
hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle);
|
||
if (!hfp_connection){
|
||
return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
|
||
}
|
||
uint8_t status = hfp_ag_setup_audio_connection(hfp_connection);
|
||
if (status != ERROR_CODE_SUCCESS){
|
||
return status;
|
||
}
|
||
hfp_ag_run_for_context(hfp_connection);
|
||
return ERROR_CODE_SUCCESS;
|
||
}
|
||
|
||
uint8_t hfp_ag_release_audio_connection(hci_con_handle_t acl_handle){
|
||
hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle);
|
||
if (!hfp_connection){
|
||
return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
|
||
}
|
||
|
||
if (hfp_connection->vra_state == HFP_VRA_VOICE_RECOGNITION_ACTIVATED){
|
||
return ERROR_CODE_COMMAND_DISALLOWED;
|
||
}
|
||
|
||
uint8_t status = hfp_trigger_release_audio_connection(hfp_connection);
|
||
if (status == ERROR_CODE_SUCCESS){
|
||
hfp_ag_run_for_context(hfp_connection);
|
||
}
|
||
return status;
|
||
}
|
||
|
||
/**
|
||
* @brief Enable in-band ring tone
|
||
*/
|
||
void hfp_ag_set_use_in_band_ring_tone(int use_in_band_ring_tone){
|
||
if (has_in_band_ring_tone() == false){
|
||
return;
|
||
}
|
||
if (hfp_ag_in_band_ring_tone_active == use_in_band_ring_tone){
|
||
return;
|
||
}
|
||
|
||
hfp_ag_in_band_ring_tone_active = use_in_band_ring_tone;
|
||
|
||
btstack_linked_list_iterator_t it;
|
||
btstack_linked_list_iterator_init(&it, hfp_get_connections());
|
||
while (btstack_linked_list_iterator_has_next(&it)){
|
||
hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it);
|
||
if (hfp_connection->local_role != HFP_ROLE_AG) continue;
|
||
hfp_connection->ag_send_in_band_ring_tone_setting = true;
|
||
hfp_ag_run_for_context(hfp_connection);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* @brief Called from GSM
|
||
*/
|
||
void hfp_ag_incoming_call(void){
|
||
hfp_ag_call_sm(HFP_AG_INCOMING_CALL, NULL);
|
||
}
|
||
|
||
void hfp_ag_outgoing_call_initiated(void) {
|
||
hfp_ag_call_sm(HFP_AG_OUTGOING_CALL_INITIATED_BY_AG, NULL);
|
||
}
|
||
|
||
/**
|
||
* @brief number is stored.
|
||
*/
|
||
void hfp_ag_set_clip(uint8_t type, const char * number){
|
||
hfp_gsm_handler(HFP_AG_SET_CLIP, 0, type, number);
|
||
}
|
||
|
||
void hfp_ag_call_dropped(void){
|
||
hfp_ag_call_sm(HFP_AG_CALL_DROPPED, NULL);
|
||
}
|
||
|
||
// call from AG UI
|
||
void hfp_ag_answer_incoming_call(void){
|
||
hfp_ag_call_sm(HFP_AG_INCOMING_CALL_ACCEPTED_BY_AG, NULL);
|
||
}
|
||
|
||
void hfp_ag_join_held_call(void){
|
||
hfp_ag_call_sm(HFP_AG_HELD_CALL_JOINED_BY_AG, NULL);
|
||
}
|
||
|
||
void hfp_ag_terminate_call(void){
|
||
hfp_ag_call_sm(HFP_AG_TERMINATE_CALL_BY_AG, NULL);
|
||
}
|
||
|
||
void hfp_ag_outgoing_call_ringing(void){
|
||
hfp_ag_call_sm(HFP_AG_OUTGOING_CALL_RINGING, NULL);
|
||
}
|
||
|
||
void hfp_ag_outgoing_call_established(void){
|
||
hfp_ag_call_sm(HFP_AG_OUTGOING_CALL_ESTABLISHED, NULL);
|
||
}
|
||
|
||
void hfp_ag_outgoing_call_rejected(void){
|
||
hfp_ag_call_sm(HFP_AG_OUTGOING_CALL_REJECTED, NULL);
|
||
}
|
||
|
||
void hfp_ag_outgoing_call_accepted(void){
|
||
hfp_ag_call_sm(HFP_AG_OUTGOING_CALL_ACCEPTED, NULL);
|
||
}
|
||
|
||
void hfp_ag_hold_incoming_call(void){
|
||
hfp_ag_call_sm(HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_AG, NULL);
|
||
}
|
||
|
||
void hfp_ag_accept_held_incoming_call(void) {
|
||
hfp_ag_call_sm(HFP_AG_RESPONSE_AND_HOLD_ACCEPT_HELD_CALL_BY_AG, NULL);
|
||
}
|
||
|
||
void hfp_ag_reject_held_incoming_call(void){
|
||
hfp_ag_call_sm(HFP_AG_RESPONSE_AND_HOLD_REJECT_HELD_CALL_BY_AG, NULL);
|
||
}
|
||
|
||
static void hfp_ag_set_ag_indicator(const char * name, int value){
|
||
int indicator_index = get_ag_indicator_index_for_name(name);
|
||
if (indicator_index < 0) return;
|
||
hfp_ag_indicators[indicator_index].status = value;
|
||
|
||
btstack_linked_list_iterator_t it;
|
||
btstack_linked_list_iterator_init(&it, hfp_get_connections());
|
||
while (btstack_linked_list_iterator_has_next(&it)){
|
||
hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it);
|
||
if (hfp_connection->local_role != HFP_ROLE_AG) continue;
|
||
if (!hfp_connection->ag_indicators[indicator_index].enabled) {
|
||
log_info("Requested AG indicator '%s' update to %u, but it is not enabled", hfp_ag_indicators[indicator_index].name, value);
|
||
continue;
|
||
}
|
||
log_info("AG indicator '%s' changed to %u, request transfer status", hfp_ag_indicators[indicator_index].name, value);
|
||
hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, indicator_index, 1);
|
||
hfp_ag_run_for_context(hfp_connection);
|
||
}
|
||
}
|
||
|
||
uint8_t hfp_ag_set_registration_status(int registration_status){
|
||
if ((registration_status < 0) || (registration_status > 1)){
|
||
return ERROR_CODE_COMMAND_DISALLOWED;
|
||
}
|
||
|
||
if ( (registration_status == 0) && (hfp_gsm_call_status() == HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT)){
|
||
|
||
// if network goes away wihle a call is active:
|
||
// - the call gets dropped
|
||
// - we send NO CARRIER
|
||
// NOTE: the CALL=0 has to be sent before NO CARRIER
|
||
|
||
hfp_ag_call_sm(HFP_AG_CALL_DROPPED, NULL);
|
||
|
||
btstack_linked_list_iterator_t it;
|
||
btstack_linked_list_iterator_init(&it, hfp_get_connections());
|
||
while (btstack_linked_list_iterator_has_next(&it)){
|
||
hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it);
|
||
hfp_connection->ag_send_no_carrier = true;
|
||
}
|
||
}
|
||
hfp_ag_set_ag_indicator("service", registration_status);
|
||
return ERROR_CODE_SUCCESS;
|
||
}
|
||
|
||
uint8_t hfp_ag_set_signal_strength(int signal_strength){
|
||
if ((signal_strength < 0) || (signal_strength > 5)){
|
||
return ERROR_CODE_COMMAND_DISALLOWED;
|
||
}
|
||
|
||
hfp_ag_set_ag_indicator("signal", signal_strength);
|
||
return ERROR_CODE_SUCCESS;
|
||
}
|
||
|
||
uint8_t hfp_ag_set_roaming_status(int roaming_status){
|
||
if ((roaming_status < 0) || (roaming_status > 1)){
|
||
return ERROR_CODE_COMMAND_DISALLOWED;
|
||
}
|
||
|
||
hfp_ag_set_ag_indicator("roam", roaming_status);
|
||
return ERROR_CODE_SUCCESS;
|
||
}
|
||
|
||
uint8_t hfp_ag_set_battery_level(int battery_level){
|
||
if ((battery_level < 0) || (battery_level > 5)){
|
||
return ERROR_CODE_COMMAND_DISALLOWED;
|
||
}
|
||
hfp_ag_set_ag_indicator("battchg", battery_level);
|
||
return ERROR_CODE_SUCCESS;
|
||
}
|
||
|
||
uint8_t hfp_ag_activate_voice_recognition(hci_con_handle_t acl_handle){
|
||
hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle);
|
||
if (!hfp_connection){
|
||
return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
|
||
}
|
||
|
||
if (hfp_connection->emit_vra_enabled_after_audio_established){
|
||
return ERROR_CODE_COMMAND_DISALLOWED;
|
||
}
|
||
|
||
bool enhanced_vra_supported = hfp_ag_enhanced_vra_flag_supported(hfp_connection);
|
||
bool legacy_vra_supported = hfp_ag_vra_flag_supported(hfp_connection);
|
||
if (!enhanced_vra_supported && !legacy_vra_supported){
|
||
return ERROR_CODE_UNSUPPORTED_FEATURE_OR_PARAMETER_VALUE;
|
||
}
|
||
|
||
if (!hfp_ag_can_activate_voice_recognition(hfp_connection)){
|
||
return ERROR_CODE_COMMAND_DISALLOWED;
|
||
}
|
||
|
||
hfp_connection->ag_activate_voice_recognition_value = 1;
|
||
hfp_connection->vra_state_requested = HFP_VRA_W2_SEND_VOICE_RECOGNITION_ACTIVATED;
|
||
hfp_connection->enhanced_voice_recognition_enabled = enhanced_vra_supported;
|
||
hfp_connection->ag_audio_connection_opened_before_vra = hfp_ag_is_audio_connection_active(hfp_connection);
|
||
hfp_connection->ag_vra_state = HFP_VOICE_RECOGNITION_STATE_AG_READY;
|
||
hfp_connection->ag_vra_send_command = true;
|
||
hfp_ag_run_for_context(hfp_connection);
|
||
return ERROR_CODE_SUCCESS;
|
||
}
|
||
|
||
uint8_t hfp_ag_deactivate_voice_recognition(hci_con_handle_t acl_handle){
|
||
hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle);
|
||
if (!hfp_connection){
|
||
return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
|
||
}
|
||
|
||
if (hfp_connection->emit_vra_enabled_after_audio_established){
|
||
return ERROR_CODE_COMMAND_DISALLOWED;
|
||
}
|
||
|
||
bool enhanced_vra_supported = hfp_ag_enhanced_vra_flag_supported(hfp_connection);
|
||
bool legacy_vra_supported = hfp_ag_vra_flag_supported(hfp_connection);
|
||
|
||
if (!enhanced_vra_supported && !legacy_vra_supported){
|
||
return ERROR_CODE_UNSUPPORTED_FEATURE_OR_PARAMETER_VALUE;
|
||
}
|
||
|
||
if (!hfp_ag_voice_recognition_session_active(hfp_connection)){
|
||
return ERROR_CODE_COMMAND_DISALLOWED;
|
||
}
|
||
|
||
hfp_connection->ag_activate_voice_recognition_value = 0;
|
||
hfp_connection->vra_state_requested = HFP_VRA_W2_SEND_VOICE_RECOGNITION_OFF;
|
||
hfp_connection->ag_vra_state = HFP_VOICE_RECOGNITION_STATE_AG_READY;
|
||
hfp_connection->ag_vra_send_command = true;
|
||
hfp_ag_run_for_context(hfp_connection);
|
||
return ERROR_CODE_SUCCESS;
|
||
}
|
||
|
||
static uint8_t hfp_ag_enhanced_voice_recognition_send_state(hci_con_handle_t acl_handle, hfp_voice_recognition_state_t state){
|
||
hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle);
|
||
if (!hfp_connection){
|
||
return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
|
||
}
|
||
|
||
if (hfp_connection->emit_vra_enabled_after_audio_established){
|
||
return ERROR_CODE_COMMAND_DISALLOWED;
|
||
}
|
||
|
||
if (hfp_connection->state != HFP_AUDIO_CONNECTION_ESTABLISHED){
|
||
return ERROR_CODE_COMMAND_DISALLOWED;
|
||
}
|
||
|
||
if (hfp_connection->vra_state != HFP_VRA_ENHANCED_VOICE_RECOGNITION_READY_FOR_AUDIO){
|
||
return ERROR_CODE_COMMAND_DISALLOWED;
|
||
}
|
||
|
||
bool enhanced_vra_supported = hfp_ag_enhanced_vra_flag_supported(hfp_connection);
|
||
if (!enhanced_vra_supported ){
|
||
return ERROR_CODE_UNSUPPORTED_FEATURE_OR_PARAMETER_VALUE;
|
||
}
|
||
|
||
|
||
hfp_connection->ag_vra_state = state;
|
||
hfp_connection->vra_state_requested = HFP_VRA_W2_SEND_ENHANCED_VOICE_RECOGNITION_STATUS;
|
||
hfp_connection->ag_vra_send_command = true;
|
||
hfp_ag_run_for_context(hfp_connection);
|
||
return ERROR_CODE_SUCCESS;
|
||
}
|
||
|
||
uint8_t hfp_ag_enhanced_voice_recognition_report_sending_audio(hci_con_handle_t acl_handle){
|
||
return hfp_ag_enhanced_voice_recognition_send_state(acl_handle, HFP_VOICE_RECOGNITION_STATE_AG_IS_STARTING_SOUND);
|
||
}
|
||
uint8_t hfp_ag_enhanced_voice_recognition_report_ready_for_audio(hci_con_handle_t acl_handle){
|
||
return hfp_ag_enhanced_voice_recognition_send_state(acl_handle, HFP_VOICE_RECOGNITION_STATE_AG_READY_TO_ACCEPT_AUDIO_INPUT);
|
||
}
|
||
uint8_t hfp_ag_enhanced_voice_recognition_report_processing_input(hci_con_handle_t acl_handle){
|
||
return hfp_ag_enhanced_voice_recognition_send_state(acl_handle, HFP_VOICE_RECOGNITION_STATE_AG_IS_PROCESSING_AUDIO_INPUT);
|
||
}
|
||
|
||
|
||
uint8_t hfp_ag_enhanced_voice_recognition_send_message(hci_con_handle_t acl_handle, hfp_voice_recognition_state_t state, hfp_voice_recognition_message_t msg){
|
||
hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle);
|
||
if (!hfp_connection){
|
||
return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
|
||
}
|
||
|
||
if (hfp_connection->emit_vra_enabled_after_audio_established){
|
||
return ERROR_CODE_COMMAND_DISALLOWED;
|
||
}
|
||
|
||
if (hfp_connection->state != HFP_AUDIO_CONNECTION_ESTABLISHED){
|
||
return ERROR_CODE_COMMAND_DISALLOWED;
|
||
}
|
||
|
||
if (hfp_connection->vra_state != HFP_VRA_ENHANCED_VOICE_RECOGNITION_READY_FOR_AUDIO){
|
||
return ERROR_CODE_COMMAND_DISALLOWED;
|
||
}
|
||
|
||
bool enhanced_vra_supported = hfp_ag_enhanced_vra_flag_supported(hfp_connection);
|
||
if (!enhanced_vra_supported ){
|
||
return ERROR_CODE_UNSUPPORTED_FEATURE_OR_PARAMETER_VALUE;
|
||
}
|
||
|
||
bool enhanced_vra_msg_supported = hfp_ag_can_send_enhanced_vra_message_flag_supported(hfp_connection);
|
||
if (!enhanced_vra_msg_supported ){
|
||
return ERROR_CODE_UNSUPPORTED_FEATURE_OR_PARAMETER_VALUE;
|
||
}
|
||
|
||
uint16_t message_len = (uint16_t) strlen(msg.text);
|
||
|
||
if (message_len > HFP_MAX_VR_TEXT_SIZE){
|
||
return ERROR_CODE_UNSUPPORTED_FEATURE_OR_PARAMETER_VALUE;
|
||
}
|
||
|
||
if ((HFP_VR_TEXT_HEADER_SIZE + message_len) > hfp_connection->rfcomm_mtu){
|
||
return ERROR_CODE_UNSUPPORTED_FEATURE_OR_PARAMETER_VALUE;
|
||
}
|
||
|
||
hfp_connection->vra_state_requested = HFP_VRA_W2_SEND_ENHANCED_VOICE_RECOGNITION_MSG;
|
||
hfp_connection->ag_msg = msg;
|
||
hfp_connection->ag_vra_state = state;
|
||
hfp_connection->ag_vra_send_command = true;
|
||
hfp_ag_run_for_context(hfp_connection);
|
||
|
||
return ERROR_CODE_SUCCESS;
|
||
}
|
||
|
||
|
||
uint8_t hfp_ag_set_microphone_gain(hci_con_handle_t acl_handle, int gain){
|
||
hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle);
|
||
if (!hfp_connection){
|
||
return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
|
||
}
|
||
|
||
if ((gain < 0) || (gain > 15)){
|
||
log_info("Valid range for a gain is [0..15]. Currently sent: %d", gain);
|
||
return ERROR_CODE_COMMAND_DISALLOWED;
|
||
}
|
||
|
||
if (hfp_connection->microphone_gain != gain){
|
||
hfp_connection->microphone_gain = gain;
|
||
hfp_connection->send_microphone_gain = 1;
|
||
}
|
||
hfp_ag_run_for_context(hfp_connection);
|
||
return ERROR_CODE_SUCCESS;
|
||
}
|
||
|
||
uint8_t hfp_ag_set_speaker_gain(hci_con_handle_t acl_handle, int gain){
|
||
hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle);
|
||
if (!hfp_connection){
|
||
return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
|
||
}
|
||
|
||
if ((gain < 0) || (gain > 15)){
|
||
log_info("Valid range for a gain is [0..15]. Currently sent: %d", gain);
|
||
return ERROR_CODE_COMMAND_DISALLOWED;
|
||
}
|
||
|
||
if (hfp_connection->speaker_gain != gain){
|
||
hfp_connection->speaker_gain = gain;
|
||
hfp_connection->send_speaker_gain = 1;
|
||
}
|
||
hfp_ag_run_for_context(hfp_connection);
|
||
return ERROR_CODE_SUCCESS;
|
||
}
|
||
|
||
uint8_t hfp_ag_send_phone_number_for_voice_tag(hci_con_handle_t acl_handle, const char * number){
|
||
hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle);
|
||
if (!hfp_connection){
|
||
return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
|
||
}
|
||
|
||
hfp_ag_set_clip(0, number);
|
||
hfp_connection->send_phone_number_for_voice_tag = 1;
|
||
return ERROR_CODE_SUCCESS;
|
||
}
|
||
|
||
uint8_t hfp_ag_reject_phone_number_for_voice_tag(hci_con_handle_t acl_handle){
|
||
hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle);
|
||
if (!hfp_connection){
|
||
return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
|
||
}
|
||
|
||
hfp_connection->send_error = 1;
|
||
return ERROR_CODE_SUCCESS;
|
||
}
|
||
|
||
uint8_t hfp_ag_send_dtmf_code_done(hci_con_handle_t acl_handle){
|
||
hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle);
|
||
if (!hfp_connection){
|
||
return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
|
||
}
|
||
|
||
hfp_connection->ok_pending = 1;
|
||
return ERROR_CODE_SUCCESS;
|
||
}
|
||
|
||
uint8_t hfp_ag_send_unsolicited_result_code(hci_con_handle_t acl_handle, const char * unsolicited_result_code){
|
||
hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle);
|
||
if (!hfp_connection){
|
||
return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
|
||
}
|
||
if (hfp_connection->send_custom_message != NULL){
|
||
return ERROR_CODE_COMMAND_DISALLOWED;
|
||
}
|
||
hfp_connection->send_custom_message = unsolicited_result_code;
|
||
hfp_ag_run_for_context(hfp_connection);
|
||
return ERROR_CODE_SUCCESS;
|
||
}
|
||
|
||
uint8_t hfp_ag_send_command_result_code(hci_con_handle_t acl_handle, bool ok){
|
||
hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle);
|
||
if (!hfp_connection){
|
||
return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
|
||
}
|
||
if (ok){
|
||
hfp_connection->ok_pending = 1;
|
||
} else {
|
||
hfp_connection->send_error = 1;
|
||
}
|
||
hfp_ag_run_for_context(hfp_connection);
|
||
return ERROR_CODE_SUCCESS;
|
||
}
|
||
|
||
void hfp_ag_set_subcriber_number_information(hfp_phone_number_t * numbers, int numbers_count){
|
||
hfp_ag_subscriber_numbers = numbers;
|
||
hfp_ag_subscriber_numbers_count = numbers_count;
|
||
}
|
||
|
||
void hfp_ag_clear_last_dialed_number(void){
|
||
hfp_gsm_clear_last_dialed_number();
|
||
}
|
||
|
||
void hfp_ag_set_last_dialed_number(const char * number){
|
||
hfp_gsm_set_last_dialed_number(number);
|
||
}
|
||
|
||
uint8_t hfp_ag_notify_incoming_call_waiting(hci_con_handle_t acl_handle){
|
||
hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle);
|
||
if (!hfp_connection){
|
||
return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
|
||
}
|
||
|
||
if (!hfp_connection->call_waiting_notification_enabled){
|
||
return ERROR_CODE_COMMAND_DISALLOWED;
|
||
}
|
||
|
||
hfp_connection->ag_notify_incoming_call_waiting = 1;
|
||
hfp_ag_run_for_context(hfp_connection);
|
||
return ERROR_CODE_SUCCESS;
|
||
}
|
||
void hfp_ag_create_sdp_record_with_codecs(uint8_t * service, uint32_t service_record_handle, int rfcomm_channel_nr,
|
||
const char * name, uint8_t ability_to_reject_call, uint16_t supported_features,
|
||
uint8_t codecs_nr, const uint8_t * codecs){
|
||
if (!name){
|
||
name = hfp_ag_default_service_name;
|
||
}
|
||
hfp_create_sdp_record(service, service_record_handle, BLUETOOTH_SERVICE_CLASS_HANDSFREE_AUDIO_GATEWAY, rfcomm_channel_nr, name);
|
||
|
||
/*
|
||
* 0x01 – Ability to reject a call
|
||
* 0x00 – No ability to reject a call
|
||
*/
|
||
de_add_number(service, DE_UINT, DE_SIZE_16, 0x0301); // Hands-Free Profile - Network
|
||
de_add_number(service, DE_UINT, DE_SIZE_8, ability_to_reject_call);
|
||
|
||
// Construct SupportedFeatures for SDP bitmap:
|
||
//
|
||
// "The values of the “SupportedFeatures” bitmap given in Table 5.4 shall be the same as the values
|
||
// of the Bits 0 to 4 of the unsolicited result code +BRSF"
|
||
//
|
||
// Wide band speech (bit 5) and LC3-SWB (bit 8) require Codec negotiation
|
||
//
|
||
uint16_t sdp_features = supported_features & 0x1f;
|
||
|
||
if (supported_features & (1 << HFP_AGSF_ENHANCED_VOICE_RECOGNITION_STATUS)){
|
||
sdp_features |= 1 << 6;
|
||
}
|
||
|
||
if (supported_features & (1 << HFP_AGSF_VOICE_RECOGNITION_TEXT)){
|
||
sdp_features |= 1 << 7;
|
||
}
|
||
|
||
// codecs
|
||
if ((supported_features & (1 << HFP_HFSF_CODEC_NEGOTIATION)) != 0){
|
||
uint8_t i;
|
||
for (i=0;i<codecs_nr;i++){
|
||
switch (codecs[i]){
|
||
case HFP_CODEC_MSBC:
|
||
sdp_features |= 1 << 5;
|
||
break;
|
||
case HFP_CODEC_LC3_SWB:
|
||
sdp_features |= 1 << 8;
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
de_add_number(service, DE_UINT, DE_SIZE_16, 0x0311); // Hands-Free Profile - SupportedFeatures
|
||
de_add_number(service, DE_UINT, DE_SIZE_16, sdp_features);
|
||
}
|
||
|
||
void hfp_ag_create_sdp_record(uint8_t * service, uint32_t service_record_handle, int rfcomm_channel_nr, const char * name,
|
||
uint8_t ability_to_reject_call, uint16_t supported_features, int wide_band_speech){
|
||
uint8_t codecs_nr;
|
||
const uint8_t * codecs;
|
||
const uint8_t wide_band_codecs[] = { HFP_CODEC_MSBC };
|
||
if (wide_band_speech == 0){
|
||
codecs_nr = 0;
|
||
codecs = NULL;
|
||
} else {
|
||
codecs_nr = 1;
|
||
codecs = wide_band_codecs;
|
||
}
|
||
hfp_ag_create_sdp_record_with_codecs(service, service_record_handle, rfcomm_channel_nr, name,
|
||
ability_to_reject_call, supported_features, codecs_nr, codecs);
|
||
}
|
||
|
||
void hfp_ag_register_packet_handler(btstack_packet_handler_t callback){
|
||
btstack_assert(callback != NULL);
|
||
|
||
hfp_ag_callback = callback;
|
||
hfp_set_ag_callback(callback);
|
||
}
|
||
|
||
void hfp_ag_register_custom_call_sm_handler(bool (*handler)(hfp_ag_call_event_t event)){
|
||
hfp_ag_custom_call_sm_handler = handler;
|
||
}
|
||
|
||
void hfp_ag_register_custom_at_command(hfp_custom_at_command_t * custom_at_command){
|
||
hfp_register_custom_ag_command(custom_at_command);
|
||
}
|