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att_server: support ecbm connections

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This commit is contained in:
Matthias Ringwald 2023-05-12 16:04:27 +02:00
parent 20d4358da6
commit 6b236cb0e9
1 changed files with 8 additions and 5 deletions
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13
src/ble/att_server.c
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@ -1329,7 +1329,8 @@ typedef struct {
hci_con_handle_t con_handle;
uint8_t * reassemble_buffer;
} att_server_eatt_bearer_t;
static btstack_linked_list_t att_server_eatt_bearers;
static btstack_linked_list_t att_server_eatt_bearer_pool;
static btstack_linked_list_t att_server_eatt_bearer_active;
static void att_server_eatt_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){
uint16_t cid;
@ -1366,17 +1367,20 @@ static void att_server_eatt_handler(uint8_t packet_type, uint16_t channel, uint8
cid = l2cap_event_ecbm_incoming_connection_get_local_cid(packet);
num_requested_bearers = l2cap_event_ecbm_incoming_connection_get_num_channels(packet);
for (i = 0; i < num_requested_bearers; i++){
eatt_bearers[i] = (att_server_eatt_bearer_t *) btstack_linked_list_get_first_item(&att_server_eatt_bearers);
eatt_bearers[i] = (att_server_eatt_bearer_t *) btstack_linked_list_get_first_item(&att_server_eatt_bearer_pool);
if (eatt_bearers[i] == NULL) {
break;
}
eatt_bearers[i]->l2cap_cid = cid + i;
eatt_bearers[i]->con_handle = l2cap_event_ecbm_incoming_connection_get_handle(packet);
receive_buffers[i] = eatt_bearers[i]->reassemble_buffer;
btstack_linked_list_add(&att_server_eatt_bearer_active, (btstack_linked_item_t *) eatt_bearers[i]);
}
num_accepted_bearers = i;
status = l2cap_ecbm_accept_channels(cid, num_accepted_bearers, initial_credits, att_server_eatt_receive_buffer_size, receive_buffers, cids);
btstack_assert(status == ERROR_CODE_SUCCESS);
for (i=0;i<num_accepted_bearers;i++){
eatt_bearers[i]->l2cap_cid = cids[i];
}
log_info("requested %u, accepted %u", num_requested_bearers, num_accepted_bearers);
break;
@ -1387,7 +1391,6 @@ static void att_server_eatt_handler(uint8_t packet_type, uint16_t channel, uint8
log_info("L2CAP_EVENT_ECBM_CHANNEL_OPENED - cid 0x%04x mtu %u, status 0x%02x", cid, remote_mtu, status);
break;
case L2CAP_EVENT_ECBM_RECONFIGURED:
break;
@ -1418,7 +1421,7 @@ uint8_t att_server_eatt_init(uint8_t num_eatt_bearers, uint8_t * storage_buffer,
eatt_bearer->con_handle = HCI_CON_HANDLE_INVALID;
eatt_bearer->reassemble_buffer = reassemble_buffer;
reassemble_buffer += reassemble_buffer_size;
btstack_linked_list_add(&att_server_eatt_bearers, (btstack_linked_item_t *) eatt_bearer);
btstack_linked_list_add(&att_server_eatt_bearer_pool, (btstack_linked_item_t *) eatt_bearer);
eatt_bearer++;
}
// TODO: define minimum EATT MTU