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add l2cap_send function. use source_cid to identify channels on client - dest_cid is choosen by remote side and may not be unique on client

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This commit is contained in:
matthias.ringwald 2009-07-30 20:14:54 +00:00
parent bb53b2914c
commit 31ce42f9cd
3 changed files with 36 additions and 6 deletions
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4
example/test.c
View File

@ -28,7 +28,7 @@ void event_handler(uint8_t *packet, uint16_t size){
bt_send_cmd(&hci_write_local_name, "BTstack-Test");
}
// use pairing
// use pairing yes/no
if ( COMMAND_COMPLETE_EVENT(packet, hci_write_local_name) ) {
bt_send_cmd(&hci_write_authentication_enable, 0);
}
@ -46,7 +46,7 @@ void event_handler(uint8_t *packet, uint16_t size){
// inform about new l2cap connection
if (packet[0] == HCI_EVENT_L2CAP_CHANNEL_OPENED){
printf("Channel successfully opened, handle 0x%02x, local cid 0x%02x\n", READ_BT_16(packet, 2), READ_BT_16(packet, 4));;
printf("Channel successfully opened, handle 0x%02x, source cid 0x%02x, dest cid 0x%02x\n", READ_BT_16(packet, 2), READ_BT_16(packet, 4), READ_BT_16(packet, 6));;
}
}

34
src/btstack.c
View File

@ -119,11 +119,12 @@ void l2cap_signaling_handler(l2cap_channel_t *channel, uint8_t *packet, uint16_t
channel->state = L2CAP_STATE_OPEN;
// notify client
uint8_t event[6];
uint8_t event[8];
event[0] = HCI_EVENT_L2CAP_CHANNEL_OPENED;
event[1] = 4;
event[1] = 6;
bt_store_16(event, 2, channel->handle);
bt_store_16(event, 4, channel->source_cid);
bt_store_16(event, 6, channel->dest_cid);
(*channel->event_callback)(event, sizeof(event));
break;
}
@ -264,7 +265,34 @@ l2cap_channel_t * l2cap_create_channel(bd_addr_t address, uint16_t psm, void (*e
return chan;
}
void l2cap_disconnect(l2cap_channel_t *channel, uint8_t reason){
void l2cap_send(uint16_t source_cid, uint8_t *data, uint16_t len){
// find channel for source_cid, construct l2cap packet and send
linked_item_t *it;
for (it = (linked_item_t *) l2cap_channels; it ; it = it->next){
l2cap_channel_t * channel = (l2cap_channel_t *) it;
if ( channel->source_cid == source_cid) {
// use hci_cmd_buffer for now
// 0 - Connection handle : PB=10 : BC=00
bt_store_16(hci_cmd_buffer, 0, channel->handle | (2 << 12) | (0 << 14));
// 2 - ACL length
bt_store_16(hci_cmd_buffer, 2, len + 4);
// 4 - L2CAP packet length
bt_store_16(hci_cmd_buffer, 4, len + 0);
// 6 - L2CAP channel DEST
bt_store_16(hci_cmd_buffer, 6, channel->dest_cid);
// 8 - data
memcpy(&hci_cmd_buffer[8], data, len);
// send
bt_send_acl_packet(hci_cmd_buffer, len+8);
return;
}
}
}
void l2cap_disconnect(uint16_t source_cid, uint8_t reason){
// TODO implement
}

4
src/btstack.h
View File

@ -36,4 +36,6 @@ int bt_send_l2cap_signaling_packet(hci_con_handle_t handle, L2CAP_SIGNALING_COMM
// outgoing connections
l2cap_channel_t * l2cap_create_channel(bd_addr_t bd_addr, uint16_t psm, void (*event_cb)(uint8_t *packet, uint16_t size),
void (*data_cb)(uint8_t *packet, uint16_t size));
void l2cap_disconnect(l2cap_channel_t *channel, uint8_t reason);
void l2cap_disconnect(uint16_t source_cid, uint8_t reason);
void l2cap_send(uint16_t source_cid, uint8_t *data, uint16_t len);