/******************************************************************************
*
* Copyright (C) 2010-2013 Broadcom Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************/
/******************************************************************************
*
* Entry point for NFC_TASK
*
******************************************************************************/
#include <string.h>
#include "gki.h"
#include "nfc_target.h"
#include "bt_types.h"
#if (NFC_INCLUDED == TRUE)
#include "nfc_api.h"
#include "nfc_hal_api.h"
#include "nfc_int.h"
#include "nci_hmsgs.h"
#include "rw_int.h"
#include "ce_int.h"
#if (NFC_RW_ONLY == FALSE)
#include "llcp_int.h"
#else
#define llcp_cleanup()
#endif
#if (defined (NFA_INCLUDED) && NFA_INCLUDED == TRUE)
#include "nfa_sys.h"
#include "nfa_dm_int.h"
#endif
/*******************************************************************************
**
** Function nfc_start_timer
**
** Description Start a timer for the specified amount of time.
** NOTE: The timeout resolution is in SECONDS! (Even
** though the timer structure field is ticks)
**
** Returns void
**
*******************************************************************************/
void nfc_start_timer (TIMER_LIST_ENT *p_tle, UINT16 type, UINT32 timeout)
{
BT_HDR *p_msg;
/* if timer list is currently empty, start periodic GKI timer */
if (nfc_cb.timer_queue.p_first == NULL)
{
/* if timer starts on other than NFC task (scritp wrapper) */
if (GKI_get_taskid () != NFC_TASK)
{
/* post event to start timer in NFC task */
if ((p_msg = (BT_HDR *) GKI_getbuf (BT_HDR_SIZE)) != NULL)
{
p_msg->event = BT_EVT_TO_START_TIMER;
GKI_send_msg (NFC_TASK, NFC_MBOX_ID, p_msg);
}
}
else
{
/* Start nfc_task 1-sec resolution timer */
GKI_start_timer (NFC_TIMER_ID, GKI_SECS_TO_TICKS (1), TRUE);
}
}
GKI_remove_from_timer_list (&nfc_cb.timer_queue, p_tle);
p_tle->event = type;
p_tle->ticks = timeout; /* Save the number of seconds for the timer */
GKI_add_to_timer_list (&nfc_cb.timer_queue, p_tle);
}
/*******************************************************************************
**
** Function nfc_remaining_time
**
** Description Return amount of time to expire
**
** Returns time in second
**
*******************************************************************************/
UINT32 nfc_remaining_time (TIMER_LIST_ENT *p_tle)
{
return (GKI_get_remaining_ticks (&nfc_cb.timer_queue, p_tle));
}
/*******************************************************************************
**
** Function nfc_process_timer_evt
**
** Description Process nfc GKI timer event
**
** Returns void
**
*******************************************************************************/
void nfc_process_timer_evt (void)
{
TIMER_LIST_ENT *p_tle;
GKI_update_timer_list (&nfc_cb.timer_queue, 1);
while ((nfc_cb.timer_queue.p_first) && (!nfc_cb.timer_queue.p_first->ticks))
{
p_tle = nfc_cb.timer_queue.p_first;
GKI_remove_from_timer_list (&nfc_cb.timer_queue, p_tle);
switch (p_tle->event)
{
case NFC_TTYPE_NCI_WAIT_RSP:
nfc_ncif_cmd_timeout();
break;
case NFC_TTYPE_WAIT_2_DEACTIVATE:
nfc_wait_2_deactivate_timeout ();
break;
default:
NFC_TRACE_DEBUG2 ("nfc_process_timer_evt: timer:0x%x event (0x%04x)", p_tle, p_tle->event);
NFC_TRACE_DEBUG1 ("nfc_process_timer_evt: unhandled timer event (0x%04x)", p_tle->event);
}
}
/* if timer list is empty stop periodic GKI timer */
if (nfc_cb.timer_queue.p_first == NULL)
{
GKI_stop_timer (NFC_TIMER_ID);
}
}
/*******************************************************************************
**
** Function nfc_stop_timer
**
** Description Stop a timer.
**
** Returns void
**
*******************************************************************************/
void nfc_stop_timer (TIMER_LIST_ENT *p_tle)
{
GKI_remove_from_timer_list (&nfc_cb.timer_queue, p_tle);
/* if timer list is empty stop periodic GKI timer */
if (nfc_cb.timer_queue.p_first == NULL)
{
GKI_stop_timer (NFC_TIMER_ID);
}
}
/*******************************************************************************
**
** Function nfc_start_quick_timer
**
** Description Start a timer for the specified amount of time.
** NOTE: The timeout resolution depends on including modules.
** QUICK_TIMER_TICKS_PER_SEC should be used to convert from
** time to ticks.
**
**
** Returns void
**
*******************************************************************************/
void nfc_start_quick_timer (TIMER_LIST_ENT *p_tle, UINT16 type, UINT32 timeout)
{
BT_HDR *p_msg;
/* if timer list is currently empty, start periodic GKI timer */
if (nfc_cb.quick_timer_queue.p_first == NULL)
{
/* if timer starts on other than NFC task (scritp wrapper) */
if (GKI_get_taskid () != NFC_TASK)
{
/* post event to start timer in NFC task */
if ((p_msg = (BT_HDR *) GKI_getbuf (BT_HDR_SIZE)) != NULL)
{
p_msg->event = BT_EVT_TO_START_QUICK_TIMER;
GKI_send_msg (NFC_TASK, NFC_MBOX_ID, p_msg);
}
}
else
{
/* Quick-timer is required for LLCP */
GKI_start_timer (NFC_QUICK_TIMER_ID, ((GKI_SECS_TO_TICKS (1) / QUICK_TIMER_TICKS_PER_SEC)), TRUE);
}
}
GKI_remove_from_timer_list (&nfc_cb.quick_timer_queue, p_tle);
p_tle->event = type;
p_tle->ticks = timeout; /* Save the number of ticks for the timer */
GKI_add_to_timer_list (&nfc_cb.quick_timer_queue, p_tle);
}
/*******************************************************************************
**
** Function nfc_stop_quick_timer
**
** Description Stop a timer.
**
** Returns void
**
*******************************************************************************/
void nfc_stop_quick_timer (TIMER_LIST_ENT *p_tle)
{
GKI_remove_from_timer_list (&nfc_cb.quick_timer_queue, p_tle);
/* if timer list is empty stop periodic GKI timer */
if (nfc_cb.quick_timer_queue.p_first == NULL)
{
GKI_stop_timer (NFC_QUICK_TIMER_ID);
}
}
/*******************************************************************************
**
** Function nfc_process_quick_timer_evt
**
** Description Process quick timer event
**
** Returns void
**
*******************************************************************************/
void nfc_process_quick_timer_evt (void)
{
TIMER_LIST_ENT *p_tle;
GKI_update_timer_list (&nfc_cb.quick_timer_queue, 1);
while ((nfc_cb.quick_timer_queue.p_first) && (!nfc_cb.quick_timer_queue.p_first->ticks))
{
p_tle = nfc_cb.quick_timer_queue.p_first;
GKI_remove_from_timer_list (&nfc_cb.quick_timer_queue, p_tle);
switch (p_tle->event)
{
#if (NFC_RW_ONLY == FALSE)
case NFC_TTYPE_LLCP_LINK_MANAGER:
case NFC_TTYPE_LLCP_LINK_INACT:
case NFC_TTYPE_LLCP_DATA_LINK:
case NFC_TTYPE_LLCP_DELAY_FIRST_PDU:
llcp_process_timeout (p_tle);
break;
#endif
case NFC_TTYPE_RW_T1T_RESPONSE:
rw_t1t_process_timeout (p_tle);
break;
case NFC_TTYPE_RW_T2T_RESPONSE:
rw_t2t_process_timeout (p_tle);
break;
case NFC_TTYPE_RW_T3T_RESPONSE:
rw_t3t_process_timeout (p_tle);
break;
case NFC_TTYPE_RW_T4T_RESPONSE:
rw_t4t_process_timeout (p_tle);
break;
case NFC_TTYPE_RW_I93_RESPONSE:
rw_i93_process_timeout (p_tle);
break;
#if (NFC_RW_ONLY == FALSE)
case NFC_TTYPE_CE_T4T_UPDATE:
ce_t4t_process_timeout (p_tle);
break;
#endif
default:
NFC_TRACE_DEBUG1 ("nfc_process_quick_timer_evt: unhandled timer event (0x%04x)", p_tle->event);
break;
}
}
/* if timer list is empty stop periodic GKI timer */
if (nfc_cb.quick_timer_queue.p_first == NULL)
{
GKI_stop_timer (NFC_QUICK_TIMER_ID);
}
}
/*******************************************************************************
**
** Function nfc_task_shutdown_nfcc
**
** Description Handle NFC shutdown
**
** Returns nothing
**
*******************************************************************************/
void nfc_task_shutdown_nfcc (void)
{
BT_HDR *p_msg;
/* Free any messages still in the mbox */
while ((p_msg = (BT_HDR *) GKI_read_mbox (NFC_MBOX_ID)) != NULL)
{
GKI_freebuf (p_msg);
}
nfc_gen_cleanup ();
if (nfc_cb.flags & NFC_FL_POWER_OFF_SLEEP)
{
nfc_set_state (NFC_STATE_W4_HAL_CLOSE);
nfc_cb.p_hal->close();
}
else if (nfc_cb.flags & NFC_FL_POWER_CYCLE_NFCC)
{
nfc_set_state (NFC_STATE_W4_HAL_OPEN);
nfc_cb.p_hal->power_cycle();
}
else
{
nfc_set_state (NFC_STATE_W4_HAL_CLOSE);
nfc_cb.p_hal->close();
/* Perform final clean up */
llcp_cleanup ();
/* Stop the timers */
GKI_stop_timer (NFC_TIMER_ID);
GKI_stop_timer (NFC_QUICK_TIMER_ID);
#if (defined (NFA_INCLUDED) && NFA_INCLUDED == TRUE)
GKI_stop_timer (NFA_TIMER_ID);
#endif
}
}
/*******************************************************************************
**
** Function nfc_task
**
** Description NFC event processing task
**
** Returns nothing
**
*******************************************************************************/
UINT32 nfc_task (UINT32 param)
{
UINT16 event;
BT_HDR *p_msg;
BOOLEAN free_buf;
/* Initialize the nfc control block */
memset (&nfc_cb, 0, sizeof (tNFC_CB));
nfc_cb.trace_level = NFC_INITIAL_TRACE_LEVEL;
NFC_TRACE_DEBUG0 ("NFC_TASK started.");
/* main loop */
while (TRUE)
{
event = GKI_wait (0xFFFF, 0);
/* Handle NFC_TASK_EVT_TRANSPORT_READY from NFC HAL */
if (event & NFC_TASK_EVT_TRANSPORT_READY)
{
NFC_TRACE_DEBUG0 ("NFC_TASK got NFC_TASK_EVT_TRANSPORT_READY.");
/* Reset the NFC controller. */
nfc_set_state (NFC_STATE_CORE_INIT);
nci_snd_core_reset (NCI_RESET_TYPE_RESET_CFG);
}
if (event & NFC_MBOX_EVT_MASK)
{
/* Process all incoming NCI messages */
while ((p_msg = (BT_HDR *) GKI_read_mbox (NFC_MBOX_ID)) != NULL)
{
free_buf = TRUE;
/* Determine the input message type. */
switch (p_msg->event & BT_EVT_MASK)
{
case BT_EVT_TO_NFC_NCI:
free_buf = nfc_ncif_process_event (p_msg);
break;
case BT_EVT_TO_START_TIMER :
/* Start nfc_task 1-sec resolution timer */
GKI_start_timer (NFC_TIMER_ID, GKI_SECS_TO_TICKS (1), TRUE);
break;
case BT_EVT_TO_START_QUICK_TIMER :
/* Quick-timer is required for LLCP */
GKI_start_timer (NFC_QUICK_TIMER_ID, ((GKI_SECS_TO_TICKS (1) / QUICK_TIMER_TICKS_PER_SEC)), TRUE);
break;
case BT_EVT_TO_NFC_MSGS:
nfc_main_handle_hal_evt ((tNFC_HAL_EVT_MSG*)p_msg);
break;
default:
NFC_TRACE_DEBUG1 ("nfc_task: unhandle mbox message, event=%04x", p_msg->event);
break;
}
if (free_buf)
{
GKI_freebuf (p_msg);
}
}
}
/* Process gki timer tick */
if (event & NFC_TIMER_EVT_MASK)
{
nfc_process_timer_evt ();
}
/* Process quick timer tick */
if (event & NFC_QUICK_TIMER_EVT_MASK)
{
nfc_process_quick_timer_evt ();
}
#if (defined (NFA_INCLUDED) && NFA_INCLUDED == TRUE)
if (event & NFA_MBOX_EVT_MASK)
{
while ((p_msg = (BT_HDR *) GKI_read_mbox (NFA_MBOX_ID)) != NULL)
{
nfa_sys_event (p_msg);
}
}
if (event & NFA_TIMER_EVT_MASK)
{
nfa_sys_timer_update ();
}
#endif
}
NFC_TRACE_DEBUG0 ("nfc_task terminated");
GKI_exit_task (GKI_get_taskid ());
return 0;
}
#endif /* NFC_INCLUDED == TRUE */