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disable page and inquiry scan when entering sleep mode

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This commit is contained in:
matthias.ringwald 2011-01-30 17:38:07 +00:00
parent 574e07e180
commit 89db417b22
1 changed files with 47 additions and 18 deletions
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33
src/hci.c
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@ -489,6 +489,13 @@ static void event_handler(uint8_t *packet, int size){
}
}
// help with BT sleep
if (hci_stack.state == HCI_STATE_FALLING_ASLEEP
&& hci_stack.substate == 1
&& COMMAND_COMPLETE_EVENT(packet, hci_write_scan_enable)){
hci_stack.substate++;
}
hci_stack.packet_handler(HCI_EVENT_PACKET, packet, size);
// execute main loop
@ -696,6 +703,7 @@ int hci_power_control(HCI_POWER_MODE power_mode){
case HCI_POWER_SLEEP:
// see hci_run
hci_stack.state = HCI_STATE_FALLING_ASLEEP;
hci_stack.substate = 0;
break;
}
break;
@ -713,6 +721,7 @@ int hci_power_control(HCI_POWER_MODE power_mode){
case HCI_POWER_SLEEP:
// see hci_run
hci_stack.state = HCI_STATE_FALLING_ASLEEP;
hci_stack.substate = 0;
break;
}
break;
@ -817,7 +826,7 @@ void hci_run(){
hci_send_cmd(&hci_write_page_timeout, 0x6000);
break;
case 4:
hci_send_cmd(&hci_write_scan_enable, 3); // 3 inq scan + page scan
hci_send_cmd(&hci_write_scan_enable, 2); // page scan
break;
case 5:
#ifndef EMBEDDED
@ -866,9 +875,13 @@ void hci_run(){
break;
case HCI_STATE_FALLING_ASLEEP:
switch(hci_stack.substate) {
case 0:
log_dbg("HCI_STATE_FALLING_ASLEEP\n");
// close all open connections
connection = (hci_connection_t *) hci_stack.connections;
if (connection){
log_dbg("HCI_STATE_FALLING_ASLEEP, connection %u, handle %u\n", (int) connection, connection->con_handle);
// send disconnect
hci_send_cmd(&hci_disconnect, connection->con_handle, 0x13); // remote closed connection
@ -880,9 +893,25 @@ void hci_run(){
return;
}
log_dbg("HCI_STATE_HALTING, disabling inq & page scans\n");
// disable page and inquiry scan
hci_send_cmd(&hci_write_scan_enable, 0); // none
// continue in next sub state
hci_stack.substate++;
break;
case 1:
// wait for command complete "hci_write_scan_enable" in event_handler();
break;
case 2:
log_dbg("HCI_STATE_HALTING, calling sleep\n");
// switch mode
hci_power_control_sleep();
hci_power_control_sleep(); // changes hci_stack.state to SLEEP
hci_emit_state();
default:
break;
}
break;
default: