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l2cap: remove 'data channel' from function names

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This commit is contained in:
Matthias Ringwald 2021-11-19 14:20:15 +01:00
parent 8dc9980f3b
commit bbb517b6ca
4 changed files with 65 additions and 97 deletions
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2
src/bluetooth.h
View File

@ -484,7 +484,7 @@ typedef enum {
// L2CAP Channels in Enhanced Credit-Based Flow-Control Mode
// number of CIDs in single connection+reconfiguration request/response
#define L2CAP_ENHANCED_DATA_CHANNEL_MAX_CID_ARRAY_SIZE 5
#define L2CAP_ECBM_MAX_CID_ARRAY_SIZE 5
// connection response result
#define L2CAP_ECBM_CONNECTION_RESULT_ALL_SUCCESS 0x0000

124
src/l2cap.c
View File

@ -122,8 +122,8 @@ typedef enum {
#define NR_PENDING_SIGNALING_RESPONSES 3
// nr of credits provided to remote if credits fall below watermark
#define L2CAP_LE_DATA_CHANNELS_AUTOMATIC_CREDITS_WATERMARK 5
#define L2CAP_LE_DATA_CHANNELS_AUTOMATIC_CREDITS_INCREMENT 5
#define L2CAP_CREDIT_BASED_FLOW_CONTROL_MODE_AUTOMATIC_CREDITS_WATERMARK 5
#define L2CAP_CREDIT_BASED_FLOW_CONTROL_MODE_AUTOMATIC_CREDITS_INCREMENT 5
// offsets for L2CAP SIGNALING COMMANDS
#define L2CAP_SIGNALING_COMMAND_CODE_OFFSET 0
@ -223,7 +223,7 @@ static uint16_t l2cap_enhanced_mps_min;
static uint16_t l2cap_enhanced_mps_max;
#endif
// single list of channels for Classic Channels, LE Data Channels, Classic Connectionless, ATT, and SM
// single list of channels for connection-oriented channels (basic, ertm, cbm, ecbf) Classic Connectionless, ATT, and SM
static btstack_linked_list_t l2cap_channels;
#ifdef L2CAP_USES_CHANNELS
// next channel id for new connections
@ -1191,8 +1191,8 @@ static l2cap_fixed_channel_t * l2cap_fixed_channel_for_channel_id(uint16_t local
static int l2cap_is_dynamic_channel_type(l2cap_channel_type_t channel_type) {
switch (channel_type) {
case L2CAP_CHANNEL_TYPE_CLASSIC:
case L2CAP_CHANNEL_TYPE_LE_DATA_CHANNEL:
case L2CAP_CHANNEL_TYPE_ENHANCED_DATA_CHANNEL:
case L2CAP_CHANNEL_TYPE_CHANNEL_CBM:
case L2CAP_CHANNEL_TYPE_CHANNEL_ECBM:
return 1;
default:
return 0;
@ -1913,14 +1913,14 @@ static bool l2ap_run_information_requests(void){
#endif
#ifdef ENABLE_L2CAP_LE_CREDIT_BASED_FLOW_CONTROL_MODE
static void l2cap_run_le_data_channels(void){
static void l2cap_cbm_run_channels(void){
btstack_linked_list_iterator_t it;
btstack_linked_list_iterator_init(&it, &l2cap_channels);
while (btstack_linked_list_iterator_has_next(&it)){
uint16_t mps;
l2cap_channel_t * channel = (l2cap_channel_t *) btstack_linked_list_iterator_next(&it);
if (channel->channel_type != L2CAP_CHANNEL_TYPE_LE_DATA_CHANNEL) continue;
if (channel->channel_type != L2CAP_CHANNEL_TYPE_CHANNEL_CBM) continue;
// log_info("l2cap_run: channel %p, state %u, var 0x%02x", channel, channel->state, channel->state_var);
switch (channel->state){
@ -1981,8 +1981,8 @@ static void l2cap_run_le_data_channels(void){
#ifdef ENABLE_L2CAP_ENHANCED_CREDIT_BASED_FLOW_CONTROL_MODE
// 11BH22222
static void l2cap_emit_enhanced_data_channel_opened(l2cap_channel_t *channel, uint8_t status) {
log_info("opened enhanced channel status 0x%x addr_type %u addr %s handle 0x%x psm 0x%x local_cid 0x%x remote_cid 0x%x local_mtu %u, remote_mtu %u",
static void l2cap_ecbm_emit_channel_opened(l2cap_channel_t *channel, uint8_t status) {
log_info("opened ecbm channel status 0x%x addr_type %u addr %s handle 0x%x psm 0x%x local_cid 0x%x remote_cid 0x%x local_mtu %u, remote_mtu %u",
status, channel->address_type, bd_addr_to_str(channel->address), channel->con_handle, channel->psm,
channel->local_cid, channel->remote_cid, channel->local_mtu, channel->remote_mtu);
uint8_t event[23];
@ -2002,7 +2002,7 @@ static void l2cap_emit_enhanced_data_channel_opened(l2cap_channel_t *channel, ui
l2cap_dispatch_to_channel(channel, HCI_EVENT_PACKET, event, sizeof(event));
}
static void l2cap_emit_enhanced_data_channel_reconfigure_complete(l2cap_channel_t *channel, uint16_t result) {
static void l2cap_ecbm_emit_reconfigure_complete(l2cap_channel_t *channel, uint16_t result) {
// emit event
uint8_t event[6];
event[0] = L2CAP_EVENT_DATA_CHANNEL_RECONFIGURATION_COMPLETE;
@ -2012,10 +2012,10 @@ static void l2cap_emit_enhanced_data_channel_reconfigure_complete(l2cap_channel_
l2cap_dispatch_to_channel(channel, HCI_EVENT_PACKET, event, sizeof(event));
}
static void l2cap_run_enhanced_data_channels(void) {
static void l2cap_ecbm_run_channels(void) {
hci_con_handle_t con_handle = HCI_CON_HANDLE_INVALID;
// num max channels + 1 for signaling pdu generator
uint16_t cids[L2CAP_ENHANCED_DATA_CHANNEL_MAX_CID_ARRAY_SIZE + 1];
uint16_t cids[L2CAP_ECBM_MAX_CID_ARRAY_SIZE + 1];
uint8_t num_cids = 0;
uint8_t sig_id;
uint16_t spsm;
@ -2033,7 +2033,7 @@ static void l2cap_run_enhanced_data_channels(void) {
btstack_linked_list_iterator_init(&it, &l2cap_channels);
while (btstack_linked_list_iterator_has_next(&it)) {
l2cap_channel_t *channel = (l2cap_channel_t *) btstack_linked_list_iterator_next(&it);
if (channel->channel_type != L2CAP_CHANNEL_TYPE_ENHANCED_DATA_CHANNEL) continue;
if (channel->channel_type != L2CAP_CHANNEL_TYPE_CHANNEL_ECBM) continue;
if (con_handle == HCI_CON_HANDLE_INVALID) {
switch (channel->state) {
case L2CAP_STATE_WILL_SEND_ENHANCED_CONNECTION_REQUEST:
@ -2116,7 +2116,7 @@ static void l2cap_run_enhanced_data_channels(void) {
// handle open for L2CAP_STATE_WILL_SEND_ENHANCED_CONNECTION_RESPONSE
if (matching_state == L2CAP_STATE_WILL_SEND_ENHANCED_CONNECTION_RESPONSE) {
if (channel->reason == 0) {
l2cap_emit_enhanced_data_channel_opened(channel, ERROR_CODE_SUCCESS);
l2cap_ecbm_emit_channel_opened(channel, ERROR_CODE_SUCCESS);
} else {
result = channel->reason;
btstack_linked_list_iterator_remove(&it);
@ -2187,11 +2187,11 @@ static void l2cap_run(void){
#endif
#ifdef ENABLE_L2CAP_LE_CREDIT_BASED_FLOW_CONTROL_MODE
l2cap_run_le_data_channels();
l2cap_cbm_run_channels();
#endif
#ifdef ENABLE_L2CAP_ENHANCED_CREDIT_BASED_FLOW_CONTROL_MODE
l2cap_run_enhanced_data_channels();
l2cap_ecbm_run_channels();
#endif
#ifdef ENABLE_BLE
@ -2524,7 +2524,7 @@ static bool l2cap_channel_ready_to_send(l2cap_channel_t * channel){
if (!channel->waiting_for_can_send_now) return false;
return hci_can_send_acl_le_packet_now() != 0;
#ifdef ENABLE_L2CAP_LE_CREDIT_BASED_FLOW_CONTROL_MODE
case L2CAP_CHANNEL_TYPE_LE_DATA_CHANNEL:
case L2CAP_CHANNEL_TYPE_CHANNEL_CBM:
if (channel->state != L2CAP_STATE_OPEN) return false;
if (channel->send_sdu_buffer == NULL) return false;
if (channel->credits_outgoing == 0u) return false;
@ -2532,7 +2532,7 @@ static bool l2cap_channel_ready_to_send(l2cap_channel_t * channel){
#endif
#endif
#ifdef ENABLE_L2CAP_ENHANCED_CREDIT_BASED_FLOW_CONTROL_MODE
case L2CAP_CHANNEL_TYPE_ENHANCED_DATA_CHANNEL:
case L2CAP_CHANNEL_TYPE_CHANNEL_ECBM:
if (channel->state != L2CAP_STATE_OPEN) return false;
if (channel->send_sdu_buffer == NULL) return false;
if (channel->credits_outgoing == 0u) return false;
@ -2572,12 +2572,12 @@ static void l2cap_channel_trigger_send(l2cap_channel_t * channel){
break;
#endif
#ifdef ENABLE_L2CAP_LE_CREDIT_BASED_FLOW_CONTROL_MODE
case L2CAP_CHANNEL_TYPE_LE_DATA_CHANNEL:
case L2CAP_CHANNEL_TYPE_CHANNEL_CBM:
l2cap_credit_based_send_pdu(channel);
break;
#endif
#ifdef ENABLE_L2CAP_ENHANCED_CREDIT_BASED_FLOW_CONTROL_MODE
case L2CAP_CHANNEL_TYPE_ENHANCED_DATA_CHANNEL:
case L2CAP_CHANNEL_TYPE_CHANNEL_ECBM:
l2cap_credit_based_send_pdu(channel);
break;
#endif
@ -2801,22 +2801,22 @@ static void l2cap_handle_disconnection_complete(hci_con_handle_t handle){
break;
#endif
#ifdef ENABLE_L2CAP_LE_CREDIT_BASED_FLOW_CONTROL_MODE
case L2CAP_CHANNEL_TYPE_LE_DATA_CHANNEL:
case L2CAP_CHANNEL_TYPE_CHANNEL_CBM:
l2cap_handle_hci_le_disconnect_event(channel);
break;
#endif
#ifdef ENABLE_L2CAP_ENHANCED_CREDIT_BASED_FLOW_CONTROL_MODE
case L2CAP_CHANNEL_TYPE_ENHANCED_DATA_CHANNEL:
case L2CAP_CHANNEL_TYPE_CHANNEL_ECBM:
switch (channel->state) {
case L2CAP_STATE_WILL_SEND_ENHANCED_CONNECTION_REQUEST:
case L2CAP_STATE_WAIT_ENHANCED_CONNECTION_RESPONSE:
// emit open failed if disconnected before connection complete
l2cap_emit_enhanced_data_channel_opened(channel, L2CAP_CONNECTION_BASEBAND_DISCONNECT);
l2cap_ecbm_emit_channel_opened(channel, L2CAP_CONNECTION_BASEBAND_DISCONNECT);
break;
case L2CAP_STATE_WILL_SEND_EHNANCED_RENEGOTIATION_REQUEST:
case L2CAP_STATE_WAIT_ENHANCED_RENEGOTIATION_RESPONSE:
// emit reconfigure failure - result = 0xffff
l2cap_emit_enhanced_data_channel_reconfigure_complete(channel, 0xffff);
l2cap_ecbm_emit_reconfigure_complete(channel, 0xffff);
break;
default:
l2cap_emit_simple_event_with_cid(channel, L2CAP_EVENT_DATA_CHANNEL_CLOSED);
@ -3557,8 +3557,8 @@ static void l2cap_signaling_handler_dispatch(hci_con_handle_t handle, uint8_t *
// open failed
channel->state = L2CAP_STATE_CLOSED;
l2cap_emit_enhanced_data_channel_opened(channel,
ERROR_CODE_CONNECTION_REJECTED_DUE_TO_LIMITED_RESOURCES);
l2cap_ecbm_emit_channel_opened(channel,
ERROR_CODE_CONNECTION_REJECTED_DUE_TO_LIMITED_RESOURCES);
// drop failed channel
btstack_linked_list_iterator_remove(&it);
l2cap_free_channel_entry(channel);
@ -3621,7 +3621,7 @@ static uint8_t l2cap_enhanced_setup_channels(btstack_linked_list_t * channels,
uint8_t i;
uint8_t status = ERROR_CODE_SUCCESS;
for (i=0;i<num_channels;i++){
l2cap_channel_t * channel = l2cap_create_channel_entry(packet_handler, L2CAP_CHANNEL_TYPE_ENHANCED_DATA_CHANNEL, connection->address, connection->address_type, psm, mtu, security_level);
l2cap_channel_t * channel = l2cap_create_channel_entry(packet_handler, L2CAP_CHANNEL_TYPE_CHANNEL_ECBM, connection->address, connection->address_type, psm, mtu, security_level);
if (!channel) {
status = BTSTACK_MEMORY_ALLOC_FAILED;
break;
@ -3771,7 +3771,7 @@ static int l2cap_enhanced_signaling_handler_dispatch(hci_con_handle_t handle, ui
// setup channel
l2cap_channel_t *channel = l2cap_create_channel_entry(service->packet_handler,
L2CAP_CHANNEL_TYPE_ENHANCED_DATA_CHANNEL,
L2CAP_CHANNEL_TYPE_CHANNEL_ECBM,
connection->address,
connection->address_type, spsm,
service->mtu,
@ -3862,12 +3862,12 @@ static int l2cap_enhanced_signaling_handler_dispatch(hci_con_handle_t handle, ui
channel->remote_mtu = new_mtu;
channel->remote_mps = new_mps;
channel->credits_outgoing = initial_credits;
l2cap_emit_enhanced_data_channel_opened(channel, ERROR_CODE_SUCCESS);
l2cap_ecbm_emit_channel_opened(channel, ERROR_CODE_SUCCESS);
continue;
}
}
// open failed
l2cap_emit_enhanced_data_channel_opened(channel, status);
l2cap_ecbm_emit_channel_opened(channel, status);
// drop failed channel
btstack_linked_list_iterator_remove(&it);
btstack_memory_l2cap_channel_free(channel);
@ -3966,7 +3966,7 @@ static int l2cap_enhanced_signaling_handler_dispatch(hci_con_handle_t handle, ui
}
channel->state = L2CAP_STATE_OPEN;
// emit event
l2cap_emit_enhanced_data_channel_reconfigure_complete(channel, result);
l2cap_ecbm_emit_reconfigure_complete(channel, result);
}
break;
@ -4090,7 +4090,7 @@ static int l2cap_le_signaling_handler_dispatch(hci_con_handle_t handle, uint8_t
if (channel->state == L2CAP_STATE_WAIT_ENHANCED_CONNECTION_RESPONSE){
channel->state = L2CAP_STATE_CLOSED;
// treat as SPSM not supported
l2cap_emit_enhanced_data_channel_opened(channel, L2CAP_CONNECTION_RESPONSE_RESULT_REFUSED_PSM);
l2cap_ecbm_emit_channel_opened(channel, L2CAP_CONNECTION_RESPONSE_RESULT_REFUSED_PSM);
// discard channel
btstack_linked_list_remove(&l2cap_channels, (btstack_linked_item_t *) channel);
@ -4169,8 +4169,8 @@ static int l2cap_le_signaling_handler_dispatch(hci_con_handle_t handle, uint8_t
}
// allocate channel
channel = l2cap_create_channel_entry(service->packet_handler, L2CAP_CHANNEL_TYPE_LE_DATA_CHANNEL, connection->address,
BD_ADDR_TYPE_LE_RANDOM, le_psm, service->mtu, service->required_security_level);
channel = l2cap_create_channel_entry(service->packet_handler, L2CAP_CHANNEL_TYPE_CHANNEL_CBM, connection->address,
BD_ADDR_TYPE_LE_RANDOM, le_psm, service->mtu, service->required_security_level);
if (!channel){
// 0x0004 Connection refused – no resources available
l2cap_register_signaling_response(handle, LE_CREDIT_BASED_CONNECTION_REQUEST, sig_id, source_cid, 0x0004);
@ -4291,7 +4291,7 @@ static void l2cap_acl_classic_handler_for_channel(l2cap_channel_t * l2cap_channe
if (l2cap_channel->state != L2CAP_STATE_OPEN) return;
#ifdef L2CAP_USES_CREDIT_BASED_CHANNELS
if (l2cap_channel->channel_type == L2CAP_CHANNEL_TYPE_ENHANCED_DATA_CHANNEL){
if (l2cap_channel->channel_type == L2CAP_CHANNEL_TYPE_CHANNEL_ECBM){
l2cap_credit_based_handle_pdu(l2cap_channel, packet, size);
return;
}
@ -4887,15 +4887,15 @@ static void l2cap_credit_based_handle_pdu(l2cap_channel_t * l2cap_channel, const
// credit counting
if (l2cap_channel->credits_incoming == 0u){
log_info("Data Channel packet received but no incoming credits");
log_info("(e)CBM: packet received but no incoming credits");
l2cap_channel->state = L2CAP_STATE_WILL_SEND_DISCONNECT_REQUEST;
return;
}
l2cap_channel->credits_incoming--;
// automatic credits
if ((l2cap_channel->credits_incoming < L2CAP_LE_DATA_CHANNELS_AUTOMATIC_CREDITS_WATERMARK) && l2cap_channel->automatic_credits){
l2cap_channel->new_credits_incoming = L2CAP_LE_DATA_CHANNELS_AUTOMATIC_CREDITS_INCREMENT;
if ((l2cap_channel->credits_incoming < L2CAP_CREDIT_BASED_FLOW_CONTROL_MODE_AUTOMATIC_CREDITS_WATERMARK) && l2cap_channel->automatic_credits){
l2cap_channel->new_credits_incoming = L2CAP_CREDIT_BASED_FLOW_CONTROL_MODE_AUTOMATIC_CREDITS_INCREMENT;
}
// first fragment
@ -5069,11 +5069,6 @@ uint8_t l2cap_cbm_accept_connection(uint16_t local_cid, uint8_t * receive_sdu_bu
return ERROR_CODE_SUCCESS;
}
/**
* @brief Deny incoming LE Data Channel connection due to resource constraints
* @param local_cid L2CAP LE Data Channel Identifier
*/
uint8_t l2cap_cbm_decline_connection(uint16_t local_cid){
// get channel
l2cap_channel_t * channel = l2cap_get_channel_for_local_cid(local_cid);
@ -5147,7 +5142,7 @@ uint8_t l2cap_cbm_create_channel(btstack_packet_handler_t packet_handler, hci_co
return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
}
l2cap_channel_t * channel = l2cap_create_channel_entry(packet_handler, L2CAP_CHANNEL_TYPE_LE_DATA_CHANNEL, connection->address, connection->address_type, psm, mtu, security_level);
l2cap_channel_t * channel = l2cap_create_channel_entry(packet_handler, L2CAP_CHANNEL_TYPE_CHANNEL_CBM, connection->address, connection->address_type, psm, mtu, security_level);
if (!channel) {
return BTSTACK_MEMORY_ALLOC_FAILED;
}
@ -5188,19 +5183,10 @@ uint8_t l2cap_cbm_create_channel(btstack_packet_handler_t packet_handler, hci_co
return ERROR_CODE_SUCCESS;
}
/**
* @brief Provide credtis for LE Data Channel
* @param local_cid L2CAP LE Data Channel Identifier
* @param credits Number additional credits for peer
*/
uint8_t l2cap_cbm_provide_credits(uint16_t local_cid, uint16_t credits){
return l2cap_credit_based_provide_credits(local_cid, credits);
}
/**
* @brief Check if outgoing buffer is available and that there's space on the Bluetooth module
* @param local_cid L2CAP LE Data Channel Identifier
*/
bool l2cap_cbm_can_send_now(uint16_t local_cid){
l2cap_channel_t * channel = l2cap_get_channel_for_local_cid(local_cid);
if (!channel) {
@ -5218,12 +5204,6 @@ bool l2cap_cbm_can_send_now(uint16_t local_cid){
return true;
}
/**
* @brief Request emission of L2CAP_EVENT_CAN_SEND_NOW as soon as possible
* @note L2CAP_EVENT_CAN_SEND_NOW might be emitted during call to this function
* so packet handler should be ready to handle it
* @param local_cid L2CAP LE Data Channel Identifier
*/
uint8_t l2cap_cbm_request_can_send_now_event(uint16_t local_cid){
l2cap_channel_t * channel = l2cap_get_channel_for_local_cid(local_cid);
if (!channel) {
@ -5235,22 +5215,10 @@ uint8_t l2cap_cbm_request_can_send_now_event(uint16_t local_cid){
return ERROR_CODE_SUCCESS;
}
/**
* @brief Send data via LE Data Channel
* @note Since data larger then the maximum PDU needs to be segmented into multiple PDUs, data needs to stay valid until ... event
* @param local_cid L2CAP LE Data Channel Identifier
* @param data data to send
* @param size data size
*/
uint8_t l2cap_cbm_send_data(uint16_t local_cid, uint8_t * data, uint16_t size){
return l2cap_credit_based_send_data(local_cid, data, size);
}
/**
* @brief Disconnect from LE Data Channel
* @param local_cid L2CAP LE Data Channel Identifier
*/
uint8_t l2cap_cbm_disconnect(uint16_t local_cid){
return l2cap_credit_based_disconnect(local_cid);
}
@ -5303,7 +5271,7 @@ void l2cap_ecbm_mps_set_max(uint16_t mps_max){
l2cap_enhanced_mps_max = mps_max;
}
uint8_t l2cap_enhanced_create_channels(btstack_packet_handler_t packet_handler, hci_con_handle_t con_handle,
uint8_t l2cap_ecbm_create_channels(btstack_packet_handler_t packet_handler, hci_con_handle_t con_handle,
gap_security_level_t security_level,
uint16_t psm, uint8_t num_channels, uint16_t initial_credits, uint16_t mtu,
uint8_t ** receive_sdu_buffers, uint16_t * out_local_cid){
@ -5367,7 +5335,7 @@ uint8_t l2cap_enhanced_create_channels(btstack_packet_handler_t packet_handler,
return status;
}
uint8_t l2cap_ecbm_accept_data_channels(uint16_t local_cid, uint8_t num_channels, uint16_t initial_credits,
uint8_t l2cap_ecbm_accept_channels(uint16_t local_cid, uint8_t num_channels, uint16_t initial_credits,
uint16_t receive_buffer_size, uint8_t ** receive_buffers, uint16_t * out_local_cids){
l2cap_channel_t * channel = l2cap_get_channel_for_local_cid(local_cid);
@ -5414,7 +5382,7 @@ uint8_t l2cap_ecbm_accept_data_channels(uint16_t local_cid, uint8_t num_channels
uint8_t l2cap_ecbm_decline_data_channels(uint16_t local_cid, uint16_t result){
uint8_t l2cap_ecbm_decline_channels(uint16_t local_cid, uint16_t result){
l2cap_channel_t * channel = l2cap_get_channel_for_local_cid(local_cid);
if (!channel) {
return L2CAP_LOCAL_CID_DOES_NOT_EXIST;
@ -5440,7 +5408,7 @@ uint8_t l2cap_ecbm_decline_data_channels(uint16_t local_cid, uint16_t result){
return ERROR_CODE_SUCCESS;
}
uint8_t l2cap_ecbm_data_channel_request_can_send_now_event(uint16_t local_cid){
uint8_t l2cap_ecbm_request_can_send_now_event(uint16_t local_cid){
l2cap_channel_t * channel = l2cap_get_channel_for_local_cid(local_cid);
if (!channel) {
log_error("can send now, no channel for cid 0x%02x", local_cid);
@ -5451,11 +5419,11 @@ uint8_t l2cap_ecbm_data_channel_request_can_send_now_event(uint16_t local_cid){
return ERROR_CODE_SUCCESS;
}
uint8_t l2cap_ecbm_reconfigure(uint8_t num_cids, uint16_t * local_cids, int16_t receive_buffer_size, uint8_t ** receive_buffers){
uint8_t l2cap_ecbm_reconfigure_channels(uint8_t num_cids, uint16_t * local_cids, int16_t receive_buffer_size, uint8_t ** receive_buffers){
btstack_assert(receive_buffers != NULL);
btstack_assert(local_cids != NULL);
if (num_cids > L2CAP_ENHANCED_DATA_CHANNEL_MAX_CID_ARRAY_SIZE){
if (num_cids > L2CAP_ECBM_MAX_CID_ARRAY_SIZE){
return ERROR_CODE_UNACCEPTABLE_CONNECTION_PARAMETERS;
}
@ -5583,4 +5551,4 @@ uint8_t l2cap_le_disconnect(uint16_t local_cid){
log_error("deprecated - please use l2cap_cbm_disconnect");
return l2cap_cbm_disconnect(local_cid);
}
#endif
#endif

18
src/l2cap.h
View File

@ -123,9 +123,9 @@ typedef enum {
typedef enum {
L2CAP_CHANNEL_TYPE_CLASSIC, // Classic Basic or ERTM
L2CAP_CHANNEL_TYPE_CONNECTIONLESS, // Classic Connectionless
L2CAP_CHANNEL_TYPE_LE_DATA_CHANNEL, // LE
L2CAP_CHANNEL_TYPE_CHANNEL_CBM, // LE
L2CAP_CHANNEL_TYPE_FIXED, // LE ATT + SM, Classic SM
L2CAP_CHANNEL_TYPE_ENHANCED_DATA_CHANNEL // Classic + LE
L2CAP_CHANNEL_TYPE_CHANNEL_ECBM // Classic + LE
} l2cap_channel_type_t;
@ -251,7 +251,7 @@ typedef struct {
uint8_t unknown_option; // used for ConfigResponse
// LE Data Channels
// Credit-Based Flow-Control mode
// incoming SDU
uint8_t * receive_sdu_buffer;
@ -410,7 +410,7 @@ typedef struct {
// service id
uint16_t psm;
// max local mtu for basic mode, min remote mtu for enhanced data channels
// max local mtu for basic mode, min remote mtu for enhanced credit-based flow-control mode
uint16_t mtu;
// internal connection
@ -763,7 +763,7 @@ void l2cap_ecbm_mps_set_max(uint16_t mps_max);
* @param out_local_cids Array of L2CAP Channel Identifiers is stored here on success
* @return status
*/
uint8_t l2cap_enhanced_create_channels(btstack_packet_handler_t packet_handler, hci_con_handle_t con_handle,
uint8_t l2cap_ecbm_create_channels(btstack_packet_handler_t packet_handler, hci_con_handle_t con_handle,
gap_security_level_t security_level,
uint16_t psm, uint8_t num_channels, uint16_t initial_credits, uint16_t receive_buffer_size,
uint8_t ** receive_buffers, uint16_t * out_local_cids);
@ -778,7 +778,7 @@ uint8_t l2cap_enhanced_create_channels(btstack_packet_handler_t packet_handler,
* @param out_local_cids Array of L2CAP Channel Identifiers is stored here on success
* @return status
*/
uint8_t l2cap_ecbm_accept_data_channels(uint16_t local_cid, uint8_t num_channels, uint16_t initial_credits,
uint8_t l2cap_ecbm_accept_channels(uint16_t local_cid, uint8_t num_channels, uint16_t initial_credits,
uint16_t receive_buffer_size, uint8_t ** receive_buffers, uint16_t * out_local_cids);
/**
* @brief Decline connection in Enhanced Credit-Based Flow-Control Mode
@ -786,7 +786,7 @@ uint8_t l2cap_ecbm_accept_data_channels(uint16_t local_cid, uint8_t num_channels
* @param result 0x0004 - insufficient resources, 0x0006 - insufficient authorization
* @return status
*/
uint8_t l2cap_ecbm_decline_data_channels(uint16_t local_cid, uint16_t result);
uint8_t l2cap_ecbm_decline_channels(uint16_t local_cid, uint16_t result);
/**
* @brief Provide credits for channel in Enhanced Credit-Based Flow-Control Mode
@ -803,7 +803,7 @@ uint8_t l2cap_ecbm_provide_credits(uint16_t local_cid, uint16_t credits);
* @param local_cid L2CAP Channel Identifier
* @return status
*/
uint8_t l2cap_ecbm_data_channel_request_can_send_now_event(uint16_t local_cid);
uint8_t l2cap_ecbm_request_can_send_now_event(uint16_t local_cid);
/**
* @brief Reconfigure MPS/MTU of local channels
@ -813,7 +813,7 @@ uint8_t l2cap_ecbm_data_channel_request_can_send_now_event(uint16_t local_cid);
* @param receive_buffers Array of buffers used for reassembly of L2CAP Information Frames into service data unit (SDU) with given MTU
* @return status
*/
uint8_t l2cap_ecbm_reconfigure(uint8_t num_cids, uint16_t * local_cids, int16_t receive_buffer_size, uint8_t ** receive_buffers);
uint8_t l2cap_ecbm_reconfigure_channels(uint8_t num_cids, uint16_t * local_cids, int16_t receive_buffer_size, uint8_t ** receive_buffers);
/**
* @brief Send data for channel in Enhanced Credit-Based Flow-Control Mode

18
test/pts/le_data_channel.c
View File

@ -293,15 +293,15 @@ static void app_packet_handler (uint8_t packet_type, uint16_t channel, uint8_t *
cid = l2cap_event_data_channel_incoming_get_local_cid(packet);
if (enhanced_authorization_required){
enhanced_authorization_required = false;
l2cap_ecbm_decline_data_channels(cid, 0x0006);
l2cap_ecbm_decline_channels(cid, 0x0006);
break;
}
if (enhanced_insufficient_key_size){
enhanced_insufficient_key_size = false;
l2cap_ecbm_decline_data_channels(cid, 0x0007);
l2cap_ecbm_decline_channels(cid, 0x0007);
break;
}
l2cap_ecbm_accept_data_channels(cid, 2, initial_credits, ENHANCED_MTU_INITIAL, receive_buffers_2, cids);
l2cap_ecbm_accept_channels(cid, 2, initial_credits, ENHANCED_MTU_INITIAL, receive_buffers_2, cids);
break;
case L2CAP_EVENT_DATA_CHANNEL_RECONFIGURED:
@ -419,13 +419,13 @@ static void stdin_process(char buffer){
case 'd':
if (handle_le != HCI_CON_HANDLE_INVALID){
printf("Connect to PSM 0x%02x - ECFC LE\n", TSPX_LE_PSM);
l2cap_enhanced_create_channels(&app_packet_handler, handle_le, LEVEL_0, TSPX_ENHANCED_PSM,
l2cap_ecbm_create_channels(&app_packet_handler, handle_le, LEVEL_0, TSPX_ENHANCED_PSM,
2, L2CAP_LE_AUTOMATIC_CREDITS, ENHANCED_MTU_INITIAL, receive_buffers_2, cids);
break;
}
if (handle_classic != HCI_CON_HANDLE_INVALID){
printf("Connect to PSM 0x%02x - ECFC Classic\n", TSPX_LE_PSM);
l2cap_enhanced_create_channels(&app_packet_handler, handle_classic, LEVEL_0, TSPX_ENHANCED_PSM,
l2cap_ecbm_create_channels(&app_packet_handler, handle_classic, LEVEL_0, TSPX_ENHANCED_PSM,
2, L2CAP_LE_AUTOMATIC_CREDITS, ENHANCED_MTU_INITIAL, receive_buffers_2, cids);
break;
}
@ -434,7 +434,7 @@ static void stdin_process(char buffer){
case 'D':
printf("Creating connection to %s 0x%02x - ECFC LE\n", bd_addr_to_str(pts_address), TSPX_PSM_UNSUPPORTED);
l2cap_enhanced_create_channels(&app_packet_handler, handle_le, LEVEL_0, TSPX_PSM_UNSUPPORTED,
l2cap_ecbm_create_channels(&app_packet_handler, handle_le, LEVEL_0, TSPX_PSM_UNSUPPORTED,
2, L2CAP_LE_AUTOMATIC_CREDITS, ENHANCED_MTU_INITIAL, receive_buffers_2, cids);
break;
@ -475,7 +475,7 @@ static void stdin_process(char buffer){
case 'r':
printf("Reconfigure MTU = %u, MPS = %u\n", ENHANCED_MTU_RECONFIGURE, enhanced_reconfigure_mps[enhanced_reconfigure_index]);
l2cap_ecbm_mps_set_max(enhanced_reconfigure_mps[enhanced_reconfigure_index++]);
l2cap_ecbm_reconfigure(1, &cid_enhanced, ENHANCED_MTU_RECONFIGURE, receive_buffers_2);
l2cap_ecbm_reconfigure_channels(1, &cid_enhanced, ENHANCED_MTU_RECONFIGURE, receive_buffers_2);
if (enhanced_reconfigure_index == enhanced_reconfigure_choices){
enhanced_reconfigure_index = 0;
}
@ -485,7 +485,7 @@ static void stdin_process(char buffer){
printf("Send L2CAP Data Short %s\n", data_short);
todo_send_short = 1;
if (enhanced_data_channel){
l2cap_ecbm_data_channel_request_can_send_now_event(cid_enhanced);
l2cap_ecbm_request_can_send_now_event(cid_enhanced);
} else {
l2cap_cbm_request_can_send_now_event(cid_le);
}
@ -495,7 +495,7 @@ static void stdin_process(char buffer){
printf("Send L2CAP Data Long %s\n", data_long);
todo_send_long = 1;
if (enhanced_data_channel){
l2cap_ecbm_data_channel_request_can_send_now_event(cid_enhanced);
l2cap_ecbm_request_can_send_now_event(cid_enhanced);
} else {
l2cap_cbm_request_can_send_now_event(cid_le);
}