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prepare SCO sending

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This commit is contained in:
matthias.ringwald@gmail.com 2015-02-16 22:01:40 +00:00
parent a8b124471d
commit 44d0e3d556
2 changed files with 75 additions and 2 deletions
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68
src/hci.c
View File

@ -346,6 +346,16 @@ uint8_t hci_number_free_acl_slots_for_handle(hci_con_handle_t con_handle){
}
}
int hci_number_free_sco_slots_for_handle(hci_con_handle_t handle){
// int num_sco_packets_sent = basic_num_sco_packets_sent;
// if (num_sco_packets_sent > hci_stack->sco_packets_total_num){
// log_info("hci_number_free_sco_slots_for_handle: outgoing packets (%u) > total packets ()", num_sco_packets_sent, hci_stack->sco_packets_total_num);
// return 0;
// }
// return hci_stack->sco_packets_total_num - num_sco_packets_sent;
return 0;
}
// new functions replacing hci_can_send_packet_now[_using_packet_buffer]
int hci_can_send_command_packet_now(void){
if (hci_stack->hci_packet_buffer_reserved) return 0;
@ -375,6 +385,20 @@ int hci_can_send_acl_packet_now(hci_con_handle_t con_handle){
return hci_can_send_prepared_acl_packet_now(con_handle);
}
int hci_can_send_prepared_sco_packet_now(hci_con_handle_t con_handle){
if (hci_stack->hci_transport->can_send_packet_now){
if (!hci_stack->hci_transport->can_send_packet_now(HCI_SCO_DATA_PACKET)){
return 0;
}
}
return hci_number_free_sco_slots_for_handle(con_handle) > 0;
}
int hci_can_send_sco_packet_now(hci_con_handle_t con_handle){
if (hci_stack->hci_packet_buffer_reserved) return 0;
return hci_can_send_prepared_sco_packet_now(con_handle);
}
// used for internal checks in l2cap[-le].c
int hci_is_packet_buffer_reserved(void){
return hci_stack->hci_packet_buffer_reserved;
@ -509,6 +533,39 @@ int hci_send_acl_packet_buffer(int size){
return hci_send_acl_packet_fragments(connection);
}
// pre: caller has reserved the packet buffer
int hci_send_sco_packet_buffer(int size){
// log_info("hci_send_acl_packet_buffer size %u", size);
if (!hci_stack->hci_packet_buffer_reserved) {
log_error("hci_send_acl_packet_buffer called without reserving packet buffer");
return 0;
}
uint8_t * packet = hci_stack->hci_packet_buffer;
hci_con_handle_t con_handle = READ_ACL_CONNECTION_HANDLE(packet); // same for ACL and SCO
// check for free places on Bluetooth module
if (!hci_can_send_prepared_sco_packet_now(con_handle)) {
log_error("hci_send_sco_packet_buffer called but no free ACL buffers on controller");
hci_release_packet_buffer();
return BTSTACK_ACL_BUFFERS_FULL;
}
// TODO: track send packet in connection struct
// hci_connection_t *connection = hci_connection_for_handle( con_handle);
// if (!connection) {
// log_error("hci_send_acl_packet_buffer called but no connection for handle 0x%04x", con_handle);
// hci_release_packet_buffer();
// return 0;
// }
// hci_connection_timestamp(connection);
hci_dump_packet( HCI_SCO_DATA_PACKET, 0, packet, size);
return hci_stack->hci_transport->send_packet(HCI_SCO_DATA_PACKET, packet, size);
}
static void acl_handler(uint8_t *packet, int size){
// log_info("acl_handler: size %u", size);
@ -1116,6 +1173,17 @@ static void event_handler(uint8_t *packet, int size){
}
break;
case HCI_EVENT_SYNCHRONOUS_CONNECTION_COMPLETE:
bt_flip_addr(addr, &packet[5]);
log_info("Synchronous Connection Complete (status=%u) %s", packet[2], bd_addr_to_str(addr));
if (!packet[2]){
// connection failed
break;
}
// conn = hci_connection_for_bd_addr_and_type(&addr, BD_ADDR_TYPE_SCO);
// if (!conn) break;
break;
case HCI_EVENT_READ_REMOTE_SUPPORTED_FEATURES_COMPLETE:
handle = READ_BT_16(packet, 3);
conn = hci_connection_for_handle(handle);

9
src/hci.h
View File

@ -637,13 +637,18 @@ void hci_run(void);
// send complete CMD packet
int hci_send_cmd_packet(uint8_t *packet, int size);
// send ACL packet prepared in hci packet buffer
int hci_send_acl_packet_buffer(int size);
// send ACL packet prepared in hci packet buffer - not working yet
// int hci_send_acl_packet_buffer(int size);
// send SCO packet prepared in hci packet buffer
int hci_send_sco_packet_buffer(int size);
// new functions replacing hci_can_send_packet_now[_using_packet_buffer]
int hci_can_send_command_packet_now(void);
int hci_can_send_acl_packet_now(hci_con_handle_t con_handle);
int hci_can_send_prepared_acl_packet_now(hci_con_handle_t con_handle);
int hci_can_send_sco_packet_now(hci_con_handle_t con_handle);
int hci_can_send_prepared_sco_packet_now(hci_con_handle_t con_handle);
// reserves outgoing packet buffer. @returns 1 if successful
int hci_reserve_packet_buffer(void);