hfp: send current call status

include/btstack/hci_cmds.h

@@ -644,7 +644,7 @@ extern "C" {
 #define HFP_SUBEVENT_REDIAL_LAST_NUMBER                    0x0E
 #define HFP_SUBEVENT_ATTACH_NUMBER_TO_VOICE_TAG            0x0F
 #define HFP_SUBEVENT_TRANSMIT_DTMF_CODES                   0x10
-
+#define HFP_SUBEVENT_TRANSMIT_STATUS_OF_CURRENT_CALL       0x11
 
 // ANCS Client
 #define ANCS_CLIENT_CONNECTED                              0xF0

src/hfp.c

@@ -621,6 +621,14 @@ void hfp_handle_hci_event(hfp_callback_t callback, uint8_t packet_type, uint8_t
 static hfp_command_t parse_command(const char * line_buffer, int isHandsFree){
     int offset = isHandsFree ? 0 : 2;
 
+    if (strncmp(line_buffer+offset, HFP_LIST_CURRENT_CALLS, strlen(HFP_LIST_CURRENT_CALLS)) == 0){
+        return HFP_CMD_LIST_CURRENT_CALLS;
+    }
+
+    if (strncmp(line_buffer+offset, HFP_SUBSCRIBER_NUMBER_INFORMATION, strlen(HFP_SUBSCRIBER_NUMBER_INFORMATION)) == 0){
+        return HFP_CMD_GET_SUBSCRIBER_NUMBER_INFORMATION;
+    }
+
     if (strncmp(line_buffer+offset, HFP_PHONE_NUMBER_FOR_VOICE_TAG, strlen(HFP_PHONE_NUMBER_FOR_VOICE_TAG)) == 0){
         if (isHandsFree) return HFP_CMD_AG_SEND_PHONE_NUMBER;
         return HFP_CMD_HF_REQUEST_PHONE_NUMBER;

src/hfp.h

@@ -131,6 +131,8 @@ extern "C" {
 #define HFP_PHONE_NUMBER_FOR_VOICE_TAG "+BINP"
 #define HFP_TRANSMIT_DTMF_CODES  "+VTS"
 #define HFP_SUBSCRIBER_NUMBER_INFORMATION "+CNUM"
+#define HFP_LIST_CURRENT_CALLS "+CLCC"
+
 
 #define HFP_OK "OK"
 #define HFP_ERROR "ERROR"
@@ -186,7 +188,9 @@ typedef enum {
     HFP_CMD_TRANSMIT_DTMF_CODES,
     HFP_CMD_SET_MICROPHONE_GAIN,
     HFP_CMD_SET_SPEAKER_GAIN,
-    HFP_CMD_GET_SUBSCRIBER_NUMBER_INFORMATION
+    HFP_CMD_GET_SUBSCRIBER_NUMBER_INFORMATION,
+    HFP_CMD_LIST_CURRENT_CALLS
+
 } hfp_command_t;
  
 
@@ -343,6 +347,32 @@ typedef enum {
     HFP_CALL_OUTGOING_RINGING
 } hfp_call_state_t;
 
+typedef enum{
+    HFP_ENHANCED_CALL_DIR_OUTGOING,
+    HFP_ENHANCED_CALL_DIR_INCOMING
+} hfp_enhanced_call_dir_t;
+
+typedef enum{
+    HFP_ENHANCED_CALL_STATUS_ACTIVE,
+    HFP_ENHANCED_CALL_STATUS_HELD,
+    HFP_ENHANCED_CALL_STATUS_OUTGOING_DIALING,
+    HFP_ENHANCED_CALL_STATUS_OUTGOING_ALERTING,
+    HFP_ENHANCED_CALL_STATUS_INCOMING,
+    HFP_ENHANCED_CALL_STATUS_INCOMING_WAITING,
+    HFP_ENHANCED_CALL_STATUS_CALL_HELD_BY_RESPONSE_AND_HOLD
+} hfp_enhanced_call_status_t;
+
+typedef enum{
+    HFP_ENHANCED_CALL_MODE_VOICE,
+    HFP_ENHANCED_CALL_MODE_DATA,
+    HFP_ENHANCED_CALL_MODE_FAX
+} hfp_enhanced_call_mode_t;
+
+typedef enum{
+    HFP_ENHANCED_CALL_MPTY_NOT_A_CONFERENCE_CALL,
+    HFP_ENHANCED_CALL_MPTY_CONFERENCE_CALL
+} hfp_enhanced_call_mpty_t;
+
 typedef enum{
     HFP_NONE_SM,
     HFP_SLC_SM,
@@ -468,6 +498,7 @@ typedef struct hfp_connection {
     uint8_t send_subscriber_number;
     int next_subscriber_number_to_send;
 
+    int send_status_of_current_calls;
     timer_source_t hfp_timeout;
 } hfp_connection_t;
 

src/hfp_ag.c

@@ -232,7 +232,6 @@ static int hfp_ag_send_phone_number_for_voice_tag_cmd(uint16_t cid){
     return send_str_over_rfcomm(cid, buffer);
 }
 
-
 static int hfp_ag_send_call_waiting_notification(uint16_t cid){
     if (!clip_type){
         clip_number[0] = 0;
@@ -1239,6 +1238,11 @@ static void hfp_run_for_context(hfp_connection_t *context){
     if (!context) return;
     if (!rfcomm_can_send_packet_now(context->rfcomm_cid)) return;
     
+    if (context->send_status_of_current_calls){
+        hfp_emit_event(hfp_callback, HFP_SUBEVENT_TRANSMIT_STATUS_OF_CURRENT_CALL, 0);
+        return;
+    } 
+
     if (context->command == HFP_CMD_UNKNOWN){
         context->ok_pending = 0;
         context->send_error = 0;
@@ -1358,6 +1362,11 @@ static void hfp_handle_rfcomm_data(uint8_t packet_type, uint16_t channel, uint8_
         hfp_parse(context, packet[pos], 0);
     }
     switch(context->command){
+        case HFP_CMD_LIST_CURRENT_CALLS:   
+            context->command = HFP_CMD_NONE;
+            context->send_status_of_current_calls = 1;
+            hfp_emit_event(hfp_callback, HFP_SUBEVENT_TRANSMIT_STATUS_OF_CURRENT_CALL, 0);
+            break;
         case HFP_CMD_GET_SUBSCRIBER_NUMBER_INFORMATION:
             if (subscriber_numbers_count == 0){
                 hfp_ag_ok(context->rfcomm_cid);
@@ -1799,3 +1808,26 @@ void hfp_ag_set_subcriber_number_information(hfp_phone_number_t * numbers, int n
     subscriber_numbers = numbers;
     subscriber_numbers_count = numbers_count;
 }
+
+void hfp_ag_send_current_call_status(bd_addr_t bd_addr, int idx, hfp_enhanced_call_dir_t dir, 
+    hfp_enhanced_call_status_t status, hfp_enhanced_call_mode_t mode, 
+    hfp_enhanced_call_mpty_t mpty, uint8_t type, const char * number){
+    
+    hfp_connection_t * connection = get_hfp_connection_context_for_bd_addr(bd_addr);
+    
+    char buffer[100];
+    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, "\"%s\",%u", number, type);
+    } 
+    snprintf(buffer+offset, sizeof(buffer)-offset, "\r\n");
+    send_str_over_rfcomm(connection->rfcomm_cid, buffer);
+}
+
+
+void hfp_ag_send_current_call_status_done(bd_addr_t bd_addr){
+    hfp_connection_t * connection = get_hfp_connection_context_for_bd_addr(bd_addr);
+    connection->ok_pending = 1;
+    connection->send_status_of_current_calls = 0;
+}
+

src/hfp_ag.h

@@ -275,6 +275,15 @@ void hfp_ag_send_dtmf_code_done(bd_addr_t bd_addr);
  */
 void hfp_ag_set_subcriber_number_information(hfp_phone_number_t * numbers, int numbers_count);
 
+/*
+ * @brief
+ */
+void hfp_ag_send_current_call_status(bd_addr_t bd_addr, int idx, hfp_enhanced_call_dir_t dir, 
+    hfp_enhanced_call_status_t status, hfp_enhanced_call_mode_t mode, 
+    hfp_enhanced_call_mpty_t mpty, uint8_t type, const char * number);
+
+void hfp_ag_send_current_call_status_done(bd_addr_t bd_addr);
+
 /* API_END */
 
 #if defined __cplusplus