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provide new hci_can_send_TYPE_packet_now functions

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This commit is contained in:
matthias.ringwald@gmail.com 2014-08-11 20:45:01 +00:00
parent 5e451dd170
commit ac928cc29a
2 changed files with 52 additions and 12 deletions
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57
src/hci.c
View File

@ -255,30 +255,63 @@ uint8_t hci_number_free_acl_slots(){
return free_slots;
}
int hci_can_send_packet_now(uint8_t packet_type){
// check for async hci transport implementations
if (hci_stack->hci_transport->can_send_packet_now){
if (!hci_stack->hci_transport->can_send_packet_now(packet_type)){
return 0;
}
}
// check regular Bluetooth flow control
// @deprecated
int hci_can_send_packet_now(uint8_t packet_type){
switch (packet_type) {
case HCI_ACL_DATA_PACKET:
return hci_number_free_acl_slots();
return hci_can_send_prepared_acl_packet_now(0);
case HCI_COMMAND_DATA_PACKET:
return hci_stack->num_cmd_packets;
return hci_can_send_command_packet_now();
default:
return 0;
}
}
// @deprecated
// same as hci_can_send_packet_now, but also checks if packet buffer is free for use
int hci_can_send_packet_now_using_packet_buffer(uint8_t packet_type){
if (hci_stack->hci_packet_buffer_reserved) return 0;
return hci_can_send_packet_now(packet_type);
switch (packet_type) {
case HCI_ACL_DATA_PACKET:
return hci_can_send_acl_packet_now(0);
case HCI_COMMAND_DATA_PACKET:
return hci_can_send_command_packet_now();
default:
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;
// check for async hci transport implementations
if (hci_stack->hci_transport->can_send_packet_now){
if (!hci_stack->hci_transport->can_send_packet_now(HCI_COMMAND_DATA_PACKET)){
return 0;
}
}
return hci_stack->num_cmd_packets > 0;
}
int hci_can_send_prepared_acl_packet_now(hci_con_handle_t con_handle) {
// check for async hci transport implementations
if (hci_stack->hci_transport->can_send_packet_now){
if (!hci_stack->hci_transport->can_send_packet_now(HCI_ACL_DATA_PACKET)){
return 0;
}
}
return hci_number_free_acl_slots() > 0;
}
int hci_can_send_acl_packet_now(hci_con_handle_t con_handle){
if (hci_stack->hci_packet_buffer_reserved) return 0;
return hci_can_send_prepared_acl_packet_now(con_handle);
}
// used for internal checks in l2cap[-le].c

7
src/hci.h
View File

@ -449,10 +449,17 @@ 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);
// 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);
// non-blocking UART driver needs
// @deprecated use hci_can_send_X_now instead
int hci_can_send_packet_now(uint8_t packet_type);
// same as hci_can_send_packet_now, but also checks if packet buffer is free for use
// @deprecated use hci_can_send_X_now instead
int hci_can_send_packet_now_using_packet_buffer(uint8_t packet_type);
// reserves outgoing packet buffer. @returns 1 if successful