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att_server: add att_server_t and att_connection_t to att_server_eatt_bearer_t

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This commit is contained in:
Matthias Ringwald 2023-05-15 18:06:48 +02:00
parent 735b022275
commit be4ca859bf
1 changed files with 14 additions and 15 deletions
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29
src/ble/att_server.c
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@ -1321,16 +1321,15 @@ void att_server_deinit(void){
}
#ifdef ENABLE_GATT_OVER_EATT
static uint8_t att_server_num_eatt_bearer;
static uint16_t att_server_eatt_receive_buffer_size;
typedef struct {
btstack_linked_item_t item;
uint16_t l2cap_cid;
hci_con_handle_t con_handle;
att_server_t att_server;
att_connection_t att_connection;
uint8_t * receive_buffer;
uint8_t * request_buffer;
uint16_t request_len;
} att_server_eatt_bearer_t;
static btstack_linked_list_t att_server_eatt_bearer_pool;
static btstack_linked_list_t att_server_eatt_bearer_active;
@ -1378,6 +1377,9 @@ static void att_server_eatt_handler(uint8_t packet_type, uint16_t channel, uint8
case L2CAP_EVENT_PACKET_SENT:
cid = l2cap_event_packet_sent_get_local_cid(packet);
eatt_bearer = att_server_eatt_bearer_for_cid(cid);
btstack_assert(eatt_bearers != NULL);
// cache request
printf("L2CAP: LE Data Channel Packet sent0x%02x\n", cid);
break;
@ -1389,7 +1391,7 @@ static void att_server_eatt_handler(uint8_t packet_type, uint16_t channel, uint8
if (eatt_bearers[i] == NULL) {
break;
}
eatt_bearers[i]->con_handle = l2cap_event_ecbm_incoming_connection_get_handle(packet);
eatt_bearers[i]->att_connection.con_handle = l2cap_event_ecbm_incoming_connection_get_handle(packet);
receive_buffers[i] = eatt_bearers[i]->receive_buffer;
btstack_linked_list_add(&att_server_eatt_bearer_active, (btstack_linked_item_t *) eatt_bearers[i]);
}
@ -1406,6 +1408,9 @@ static void att_server_eatt_handler(uint8_t packet_type, uint16_t channel, uint8
cid = l2cap_event_ecbm_channel_opened_get_local_cid(packet);
status = l2cap_event_channel_opened_get_status(packet);
remote_mtu = l2cap_event_channel_opened_get_remote_mtu(packet);
eatt_bearer = att_server_eatt_bearer_for_cid(cid);
btstack_assert(eatt_bearer != NULL);
eatt_bearer->att_connection.max_mtu = remote_mtu;
log_info("L2CAP_EVENT_ECBM_CHANNEL_OPENED - cid 0x%04x mtu %u, status 0x%02x", cid, remote_mtu, status);
break;
@ -1437,22 +1442,16 @@ uint8_t att_server_eatt_init(uint8_t num_eatt_bearers, uint8_t * storage_buffer,
// TODO: The minimum ATT_MTU for an Enhanced ATT bearer is 64 octets.
memset(storage_buffer, 0, storage_size);
att_server_num_eatt_bearer = num_eatt_bearers;
uint16_t bearer_buffer_size = ((storage_size - size_for_structs) / num_eatt_bearers);
att_server_eatt_receive_buffer_size = bearer_buffer_size / 2;
uint16_t request_buffer_size = bearer_buffer_size / 2;
uint16_t size_per_bearer = storage_size / num_eatt_bearers;
att_server_eatt_receive_buffer_size = ((storage_size - size_for_structs) / num_eatt_bearers);
uint8_t * bearer_buffer = &storage_buffer[size_for_structs];
uint8_t i;
att_server_eatt_bearer_t * eatt_bearer = (att_server_eatt_bearer_t *) storage_buffer;
log_info("%u EATT bearers with receive buffer size %u and request buffer size %u",
num_eatt_bearers, att_server_eatt_receive_buffer_size, request_buffer_size);
log_info("%u EATT bearers with receive buffer size %u",
num_eatt_bearers, att_server_eatt_receive_buffer_size);
for (i=0;i<num_eatt_bearers;i++){
eatt_bearer->con_handle = HCI_CON_HANDLE_INVALID;
eatt_bearer->att_connection.con_handle = HCI_CON_HANDLE_INVALID;
eatt_bearer->receive_buffer = bearer_buffer;
bearer_buffer += att_server_eatt_receive_buffer_size;
eatt_bearer->request_buffer = bearer_buffer;
bearer_buffer += request_buffer_size;
btstack_linked_list_add(&att_server_eatt_bearer_pool, (btstack_linked_item_t *) eatt_bearer);
eatt_bearer++;
}