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convert GATT_NOTIFICATION and GATT_INDICATION

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This commit is contained in:
Matthias Ringwald 2015-10-14 17:06:36 +02:00
parent a268c24433
commit ba626ec371
1 changed files with 26 additions and 10 deletions
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36
ble/gatt_client.c
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@ -595,7 +595,7 @@ static void emit_event_new(uint16_t gatt_client_id, uint8_t * packet, uint16_t s
(*gatt_client_callback)(HCI_EVENT_PACKET, packet, size);
}
static void emit_event_to_all_subclients_new(uint16_t gatt_client_id, uint8_t * packet, uint16_t size){
static void emit_event_to_all_subclients_new(uint8_t * packet, uint16_t size){
linked_list_iterator_t it;
linked_list_iterator_init(&it, &gatt_subclients);
while (linked_list_iterator_has_next(&it)){
@ -840,29 +840,45 @@ static void send_characteristic_value_event(gatt_client_t * peripheral, uint16_t
emit_event(peripheral->subclient_id, (le_event_t*)&event);
}
// @returns packet pointer
// @note assume that value is part of an l2cap buffer - overwrite parts of the HCI/L2CAP/ATT packet (4/4/3) bytes
static const int characteristic_value_event_header_size = 8;
static uint8_t * setup_characteristic_value_packet(uint8_t type, uint16_t con_handle, uint16_t attribute_handle, uint8_t * value, uint16_t length){
// before the value inside the ATT PDU
uint8_t * packet = value - characteristic_value_event_header_size;
packet[0] = type;
packet[1] = characteristic_value_event_header_size - 2 + length;
bt_store_16(packet, 2, con_handle);
bt_store_16(packet, 4, attribute_handle);
bt_store_16(packet, 6, length);
return packet;
}
// @note assume that value is part of an l2cap buffer - overwrite parts of the HCI/L2CAP/ATT packet (4/4/3) bytes
static void report_gatt_notification(uint16_t con_handle, uint16_t value_handle, uint8_t * value, int length){
uint8_t * packet = setup_characteristic_value_packet(GATT_NOTIFICATION, con_handle, value_handle, value, length);
emit_event_to_all_subclients_new(packet, characteristic_value_event_header_size + 8);
#ifdef OLD
le_characteristic_value_event_t event;
setup_characteristic_value_event(&event, con_handle, value_handle, value, length, 0, GATT_NOTIFICATION);
emit_event_to_all_subclients((le_event_t*)&event);
#endif
}
// @note assume that value is part of an l2cap buffer - overwrite parts of the HCI/L2CAP/ATT packet (4/4/3) bytes
static void report_gatt_indication(uint16_t con_handle, uint16_t value_handle, uint8_t * value, int length){
uint8_t * packet = setup_characteristic_value_packet(GATT_INDICATION, con_handle, value_handle, value, length);
emit_event_to_all_subclients_new(packet, characteristic_value_event_header_size + 8);
#ifdef OLD
le_characteristic_value_event_t event;
setup_characteristic_value_event(&event, con_handle, value_handle, value, length, 0, GATT_INDICATION);
emit_event_to_all_subclients((le_event_t*)&event);
#endif
}
// @note assume that value is part of an l2cap buffer - overwrite parts of the HCI/L2CAP/ATT packet (4/4/3) bytes
static void report_gatt_characteristic_value(gatt_client_t * peripheral, uint16_t attribute_handle, uint8_t * value, uint16_t length){
// before the value inside the ATT PDU
const int header_size = 8;
uint8_t * packet = value - header_size;
packet[0] = GATT_CHARACTERISTIC_VALUE_QUERY_RESULT;
packet[1] = header_size - 2 + length;
bt_store_16(packet, 2, peripheral->handle);
bt_store_16(packet, 4, attribute_handle);
bt_store_16(packet, 6, length);
// packet + 8 == value
uint8_t * packet = setup_characteristic_value_packet(GATT_CHARACTERISTIC_VALUE_QUERY_RESULT, peripheral->handle, attribute_handle, value, length);
emit_event_new(peripheral->subclient_id, packet, length + 8);
#ifdef OLD
send_characteristic_value_event(peripheral, attribute_handle, value, length, 0, GATT_CHARACTERISTIC_VALUE_QUERY_RESULT);