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daemon: register for gatt notifications when writing ccc

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This commit is contained in:
Matthias Ringwald 2018-08-24 17:04:29 +02:00
parent 31ee742e25
commit 24047dd67d
1 changed files with 30 additions and 0 deletions
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30
platform/daemon/src/daemon.c
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@ -152,6 +152,7 @@ typedef struct {
btstack_linked_list_t l2cap_psms;
btstack_linked_list_t sdp_record_handles;
btstack_linked_list_t gatt_con_handles;
// power mode
HCI_POWER_MODE power_mode;
@ -175,12 +176,18 @@ typedef struct btstack_linked_list_gatt_client_helper{
hci_con_handle_t con_handle;
connection_t * active_connection; // the one that started the current query
btstack_linked_list_t all_connections; // list of all connections that ever used this helper
btstack_linked_list_t gatt_client_notifications; // could be in client_state_t as well
uint16_t characteristic_length;
uint16_t characteristic_handle;
uint8_t characteristic_buffer[10 + ATT_MAX_LONG_ATTRIBUTE_SIZE]; // header for sending event right away
uint8_t long_query_type;
} btstack_linked_list_gatt_client_helper_t;
typedef struct {
btstack_linked_item_t item;
gatt_client_notification_t notification_listener;
} btstack_linked_list_gatt_client_notification_t;
// MARK: prototypes
static void handle_sdp_rfcomm_service_result(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size);
static void handle_sdp_client_query_result(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size);
@ -466,6 +473,16 @@ static void daemon_remove_gatt_client_helper(uint32_t con_handle){
if (!helper) return;
// stop listening
btstack_linked_list_iterator_init(&it, &helper->gatt_client_notifications);
while (btstack_linked_list_iterator_has_next(&it)){
btstack_linked_list_gatt_client_notification_t * item = (btstack_linked_list_gatt_client_notification_t*) btstack_linked_list_iterator_next(&it);
log_info("Stop gatt notification listener %p", item);
gatt_client_stop_listening_for_characteristic_value_updates(&item->notification_listener);
btstack_linked_list_remove(&helper->gatt_client_notifications, (btstack_linked_item_t *) item);
free(item);
}
// remove all connection from helper
btstack_linked_list_iterator_init(&it, &helper->all_connections);
while (btstack_linked_list_iterator_has_next(&it)){
@ -628,6 +645,7 @@ static void daemon_gatt_client_close_connection(connection_t * connection){
if (!client) return;
btstack_linked_list_iterator_t it;
btstack_linked_list_iterator_init(&it, &client->gatt_con_handles);
while (btstack_linked_list_iterator_has_next(&it)){
btstack_linked_list_uint32_t * item = (btstack_linked_list_uint32_t*) btstack_linked_list_iterator_next(&it);
@ -1258,7 +1276,19 @@ static int btstack_command_handler(connection_t *connection, uint8_t *packet, ui
status = gatt_client_write_client_characteristic_configuration(&handle_gatt_client_event, gatt_helper->con_handle, &characteristic, configuration);
if (status){
send_gatt_query_complete(connection, gatt_helper->con_handle, status);
break;
}
// ignore notification off
if (configuration == 0) break;
// TODO: we assume it works
// start listening
btstack_linked_list_gatt_client_notification_t * linked_notification = malloc(sizeof(btstack_linked_list_gatt_client_notification_t));
if (!linked_notification) break;
log_info("Start gatt notification listener %p", linked_notification);
gatt_client_listen_for_characteristic_value_updates(&linked_notification->notification_listener, &handle_gatt_client_event, gatt_helper->con_handle, &characteristic);
btstack_linked_list_add(&gatt_helper->gatt_client_notifications, (btstack_linked_item_t *) linked_notification);
break;
}
case GATT_GET_MTU: