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/******************************************************************************
*
* 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.
*
******************************************************************************/
/******************************************************************************
*
* Functions for handling NFC HAL NCI Transport events
*
******************************************************************************/
#include <string.h>
#include "nfc_hal_int.h"
#include "nfc_hal_post_reset.h"
#include "userial.h"
#include "upio.h"
/****************************************************************************
** Definitions
****************************************************************************/
/* Default NFC HAL NCI port configuration */
NFC_HAL_TRANS_CFG_QUALIFIER tNFC_HAL_TRANS_CFG nfc_hal_trans_cfg =
{
NFC_HAL_SHARED_TRANSPORT_ENABLED, /* bSharedTransport */
USERIAL_BAUD_115200, /* Baud rate */
USERIAL_FC_HW /* Flow control */
};
/* Control block for NFC HAL NCI transport */
#if NFC_DYNAMIC_MEMORY == FALSE
tNFC_HAL_CB nfc_hal_cb;
#endif
extern tNFC_HAL_CFG *p_nfc_hal_cfg;
/****************************************************************************
** Internal function prototypes
****************************************************************************/
static void nfc_hal_main_userial_cback (tUSERIAL_PORT port, tUSERIAL_EVT evt, tUSERIAL_EVT_DATA *p_data);
static void nfc_hal_main_handle_terminate (void);
static void nfc_hal_main_timeout_cback (void *p_tle);
#if (NFC_HAL_DEBUG == TRUE)
const char * const nfc_hal_init_state_str[] =
{
"IDLE", /* Initialization is done */
"W4_XTAL_SET", /* Waiting for crystal setting rsp */
"POST_XTAL_SET", /* Waiting for reset ntf after xtal set */
"W4_NFCC_ENABLE", /* Waiting for reset ntf atter REG_PU up */
"W4_BUILD_INFO", /* Waiting for build info rsp */
"W4_PATCH_INFO", /* Waiting for patch info rsp */
"W4_APP_COMPL", /* Waiting for complete from application */
"W4_POST_INIT", /* Waiting for complete of post init */
"W4_CONTROL", /* Waiting for control release */
"W4_PREDISC", /* Waiting for complete of prediscover */
"CLOSING" /* Shutting down */
};
#endif
/*******************************************************************************
**
** Function nfc_hal_main_init
**
** Description This function initializes control block for NFC HAL
**
** Returns nothing
**
*******************************************************************************/
void nfc_hal_main_init (void)
{
/* Clear control block */
memset (&nfc_hal_cb, 0, sizeof (tNFC_HAL_CB));
nfc_hal_cb.ncit_cb.nci_ctrl_size = NFC_HAL_NCI_INIT_CTRL_PAYLOAD_SIZE;
nfc_hal_cb.trace_level = NFC_HAL_INITIAL_TRACE_LEVEL;
nfc_hal_cb.timer.p_cback = nfc_hal_main_timeout_cback;
}
/*******************************************************************************
**
** Function nfc_hal_main_open_transport
**
** Description Open transport and prepare for new incoming message;
**
** Returns nothing
**
*******************************************************************************/
static void nfc_hal_main_open_transport (void)
{
tUSERIAL_OPEN_CFG open_cfg;
/* Initialize control block */
nfc_hal_cb.ncit_cb.rcv_state = NFC_HAL_RCV_IDLE_ST; /* to process packet type */
if (nfc_hal_cb.ncit_cb.p_rcv_msg)
{
GKI_freebuf (nfc_hal_cb.ncit_cb.p_rcv_msg);
nfc_hal_cb.ncit_cb.p_rcv_msg = NULL;
}
/* open transport */
open_cfg.fmt = (USERIAL_DATABITS_8 | USERIAL_PARITY_NONE | USERIAL_STOPBITS_1);
open_cfg.baud = nfc_hal_trans_cfg.userial_baud;
open_cfg.fc = nfc_hal_trans_cfg.userial_fc;
open_cfg.buf = USERIAL_BUF_BYTE;
USERIAL_Open (USERIAL_NFC_PORT, &open_cfg, nfc_hal_main_userial_cback);
{
/* Wait for NFCC to enable - Core reset notification */
NFC_HAL_SET_INIT_STATE (NFC_HAL_INIT_STATE_W4_NFCC_ENABLE);
/* NFCC Enable timeout */
nfc_hal_main_start_quick_timer (&nfc_hal_cb.timer, NFC_HAL_TTYPE_NFCC_ENABLE,
((p_nfc_hal_cfg->nfc_hal_nfcc_enable_timeout)*QUICK_TIMER_TICKS_PER_SEC)/1000);
}
}
/*******************************************************************************
**
** Function nfa_hal_pre_discover_done_cback
**
** Description Pre-discovery CFG is sent.
**
** Returns nothing
**
*******************************************************************************/
void nfa_hal_pre_discover_done_cback (tNFC_HAL_NCI_EVT event, UINT16 data_len, UINT8 *p_data)
{
NFC_HAL_SET_INIT_STATE(NFC_HAL_INIT_STATE_IDLE);
nfc_hal_main_stop_quick_timer (&nfc_hal_cb.ncit_cb.nci_wait_rsp_timer);
nfc_hal_cb.p_stack_cback (HAL_NFC_PRE_DISCOVER_CPLT_EVT, HAL_NFC_STATUS_OK);
}
/*******************************************************************************
**
** Function nfa_hal_send_pre_discover_cfg
**
** Description sending Pre-discovery CFG
**
** Returns nothing
**
*******************************************************************************/
void nfa_hal_send_pre_discover_cfg (void)
{
if (nfc_hal_dm_set_config (p_nfc_hal_pre_discover_cfg [0],
&p_nfc_hal_pre_discover_cfg[1],
nfa_hal_pre_discover_done_cback) != HAL_NFC_STATUS_OK)
{
nfa_hal_pre_discover_done_cback(0, 0, NULL);
}
}
/*******************************************************************************
**
** Function nfc_hal_main_send_error
**
** Description send an Error event to NFC stack
**
** Returns nothing
**
*******************************************************************************/
void nfc_hal_main_send_error (tHAL_NFC_STATUS status)
{
/* Notify stack */
nfc_hal_cb.p_stack_cback(HAL_NFC_ERROR_EVT, status);
}
/*******************************************************************************
**
** Function nfc_hal_main_userial_cback
**
** Description USERIAL callback for NCI transport
**
** Returns nothing
**
*******************************************************************************/
static void nfc_hal_main_userial_cback (tUSERIAL_PORT port, tUSERIAL_EVT evt, tUSERIAL_EVT_DATA *p_data)
{
if (evt == USERIAL_RX_READY_EVT)
{
/* Notify transport task of serial port event */
GKI_send_event (NFC_HAL_TASK, NFC_HAL_TASK_EVT_DATA_RDY);
}
else if (evt == USERIAL_TX_DONE_EVT)
{
/* Serial driver has finshed sending data from USERIAL_Write */
/* Currently, no action is needed for this event */
}
else if (evt == USERIAL_ERR_EVT)
{
HAL_TRACE_ERROR0 ("nfc_hal_main_userial_cback: USERIAL_ERR_EVT. Notifying NFC_TASK of transport error");
if (nfc_hal_cb.ncit_cb.nci_wait_rsp != NFC_HAL_WAIT_RSP_NONE)
{
nfc_hal_main_stop_quick_timer (&nfc_hal_cb.ncit_cb.nci_wait_rsp_timer);
nfc_hal_nci_cmd_timeout_cback ((void *)&nfc_hal_cb.ncit_cb.nci_wait_rsp_timer);
}
else
{
nfc_hal_main_send_error (HAL_NFC_STATUS_ERR_TRANSPORT);
}
}
else if (evt == USERIAL_WAKEUP_EVT)
{
HAL_TRACE_DEBUG1 ("nfc_hal_main_userial_cback: USERIAL_WAKEUP_EVT: %d", p_data->sigs);
}
else
{
HAL_TRACE_DEBUG1 ("nfc_hal_main_userial_cback: unhandled userial evt: %i", evt);
}
}
/*******************************************************************************
**
** Function nfc_hal_main_pre_init_done
**
** Description notify complete of pre-initialization
**
** Returns nothing
**
*******************************************************************************/
void nfc_hal_main_pre_init_done (tHAL_NFC_STATUS status)
{
HAL_TRACE_DEBUG1 ("nfc_hal_main_pre_init_done () status = %d", status);
if (status != HAL_NFC_STATUS_OK)
{
nfc_hal_main_handle_terminate ();
/* Close uart */
USERIAL_Close (USERIAL_NFC_PORT);
}
/* Notify NFC Task the status of initialization */
nfc_hal_cb.p_stack_cback (HAL_NFC_OPEN_CPLT_EVT, status);
}
/*******************************************************************************
**
** Function nfc_hal_main_timeout_cback
**
** Description callback function for timeout
**
** Returns void
**
*******************************************************************************/
static void nfc_hal_main_timeout_cback (void *p_tle)
{
TIMER_LIST_ENT *p_tlent = (TIMER_LIST_ENT *) p_tle;
HAL_TRACE_DEBUG0 ("nfc_hal_main_timeout_cback ()");
switch (p_tlent->event)
{
case NFC_HAL_TTYPE_POWER_CYCLE:
nfc_hal_main_open_transport ();
break;
case NFC_HAL_TTYPE_NFCC_ENABLE:
/* NFCC should have enabled now, notify transport openned */
nfc_hal_dm_pre_init_nfcc ();
break;
default:
HAL_TRACE_DEBUG1 ("nfc_hal_main_timeout_cback: unhandled timer event (0x%04x)", p_tlent->event);
break;
}
}
/*******************************************************************************
**
** Function nfc_hal_main_handle_terminate
**
** Description Handle NFI transport shutdown
**
** Returns nothing
**
*******************************************************************************/
static void nfc_hal_main_handle_terminate (void)
{
NFC_HDR *p_msg;
/* dequeue and free buffer */
if (nfc_hal_cb.ncit_cb.p_pend_cmd != NULL)
{
GKI_freebuf (nfc_hal_cb.ncit_cb.p_pend_cmd);
nfc_hal_cb.ncit_cb.p_pend_cmd = NULL;
}
/* Free unsent nfc rx buffer */
if (nfc_hal_cb.ncit_cb.p_rcv_msg)
{
GKI_freebuf (nfc_hal_cb.ncit_cb.p_rcv_msg);
nfc_hal_cb.ncit_cb.p_rcv_msg = NULL;
}
/* Free buffer for pending fragmented response/notification */
if (nfc_hal_cb.ncit_cb.p_frag_msg)
{
GKI_freebuf (nfc_hal_cb.ncit_cb.p_frag_msg);
nfc_hal_cb.ncit_cb.p_frag_msg = NULL;
}
/* Free buffers in the tx mbox */
while ((p_msg = (NFC_HDR *) GKI_read_mbox (NFC_HAL_TASK_MBOX)) != NULL)
{
GKI_freebuf (p_msg);
}
/* notify closing transport */
nfc_hal_dm_shutting_down_nfcc ();
}
/*******************************************************************************
**
** Function nfc_hal_main_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_hal_main_start_quick_timer (TIMER_LIST_ENT *p_tle, UINT16 type, UINT32 timeout)
{
NFC_HDR *p_msg;
/* if timer list is currently empty, start periodic GKI timer */
if (nfc_hal_cb.quick_timer_queue.p_first == NULL)
{
/* if timer starts on other than NCIT task (script wrapper) */
if(GKI_get_taskid () != NFC_HAL_TASK)
{
/* post event to start timer in NCIT task */
if ((p_msg = (NFC_HDR *) GKI_getbuf (NFC_HDR_SIZE)) != NULL)
{
p_msg->event = NFC_HAL_EVT_TO_START_QUICK_TIMER;
GKI_send_msg (NFC_HAL_TASK, NFC_HAL_TASK_MBOX, p_msg);
}
}
else
{
GKI_start_timer (NFC_HAL_QUICK_TIMER_ID, ((GKI_SECS_TO_TICKS (1) / QUICK_TIMER_TICKS_PER_SEC)), TRUE);
}
}
GKI_remove_from_timer_list (&nfc_hal_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_hal_cb.quick_timer_queue, p_tle);
}
/*******************************************************************************
**
** Function nfc_hal_main_stop_quick_timer
**
** Description Stop a timer.
**
** Returns void
**
*******************************************************************************/
void nfc_hal_main_stop_quick_timer (TIMER_LIST_ENT *p_tle)
{
GKI_remove_from_timer_list (&nfc_hal_cb.quick_timer_queue, p_tle);
/* if timer list is empty stop periodic GKI timer */
if (nfc_hal_cb.quick_timer_queue.p_first == NULL)
{
GKI_stop_timer (NFC_HAL_QUICK_TIMER_ID);
}
}
/*******************************************************************************
**
** Function nfc_hal_main_process_quick_timer_evt
**
** Description Process quick timer event
**
** Returns void
**
*******************************************************************************/
static void nfc_hal_main_process_quick_timer_evt (void)
{
TIMER_LIST_ENT *p_tle;
GKI_update_timer_list (&nfc_hal_cb.quick_timer_queue, 1);
while ((nfc_hal_cb.quick_timer_queue.p_first) && (!nfc_hal_cb.quick_timer_queue.p_first->ticks))
{
p_tle = nfc_hal_cb.quick_timer_queue.p_first;
GKI_remove_from_timer_list (&nfc_hal_cb.quick_timer_queue, p_tle);
if (p_tle->p_cback)
{
(*p_tle->p_cback) (p_tle);
}
}
/* if timer list is empty stop periodic GKI timer */
if (nfc_hal_cb.quick_timer_queue.p_first == NULL)
{
GKI_stop_timer (NFC_HAL_QUICK_TIMER_ID);
}
}
/*******************************************************************************
**
** Function nfc_hal_send_nci_msg_to_nfc_task
**
** Description This function is called to send nci message to nfc task
**
** Returns void
**
*******************************************************************************/
void nfc_hal_send_nci_msg_to_nfc_task (NFC_HDR * p_msg)
{
#ifdef NFC_HAL_SHARED_GKI
/* Using shared NFC/HAL GKI resources - send message buffer directly to NFC_TASK for processing */
p_msg->event = BT_EVT_TO_NFC_NCI;
GKI_send_msg (NFC_TASK, NFC_MBOX_ID, p_msg);
#else
/* Send NCI message to the stack */
nfc_hal_cb.p_data_cback (p_msg->len, (UINT8 *) ((p_msg + 1)
+ p_msg->offset));
GKI_freebuf(p_msg);
#endif
}
/*******************************************************************************
**
** Function nfc_hal_send_credit_ntf_for_cid
**
** Description This function is called to send credit ntf
** for the specified connection id to nfc task
**
** Returns void
**
*******************************************************************************/
static void nfc_hal_send_credit_ntf_for_cid (UINT8 cid)
{
NFC_HDR *p_msg;
UINT8 *p, *ps;
/* Start of new message. Allocate a buffer for message */
if ((p_msg = (NFC_HDR *) GKI_getpoolbuf (NFC_HAL_NCI_POOL_ID)) != NULL)
{
/* Initialize NFC_HDR */
p_msg->len = NCI_DATA_HDR_SIZE + 0x03;
p_msg->event = 0;
p_msg->offset = 0;
p_msg->layer_specific = 0;
p = (UINT8 *) (p_msg + 1) + p_msg->offset;
ps = p;
NCI_MSG_BLD_HDR0(p, NCI_MT_NTF, NCI_GID_CORE);
NCI_MSG_BLD_HDR1(p, NCI_MSG_CORE_CONN_CREDITS);
UINT8_TO_STREAM (p, 0x03);
/* Number of credit entries */
*p++ = 0x01;
/* Connection id of the credit ntf */
*p++ = cid;
/* Number of credits */
*p = 0x01;
#ifdef DISP_NCI
DISP_NCI (ps, (UINT16) p_msg->len, TRUE);
#endif
nfc_hal_send_nci_msg_to_nfc_task (p_msg);
}
else
{
HAL_TRACE_ERROR0 ("Unable to allocate buffer for Sending credit ntf to stack");
}
}
/*******************************************************************************
**
** Function nfc_hal_main_send_message
**
** Description This function is calledto send an NCI message.
**
** Returns void
**
*******************************************************************************/
static void nfc_hal_main_send_message (NFC_HDR *p_msg)
{
UINT8 *ps, *pp, cid, pbf;
UINT16 len = p_msg->len;
UINT16 data_len;
#ifdef DISP_NCI
UINT8 delta;
#endif
HAL_TRACE_DEBUG1 ("nfc_hal_main_send_message() ls:0x%x", p_msg->layer_specific);
if ( (p_msg->layer_specific == NFC_HAL_WAIT_RSP_CMD)
||(p_msg->layer_specific == NFC_HAL_WAIT_RSP_VSC) )
{
nfc_hal_nci_send_cmd (p_msg);
}
else
{
/* NFC task has fragmented the data packet to the appropriate size
* and data credit is available; just send it */
/* add NCI packet type in front of message */
nfc_hal_nci_add_nfc_pkt_type (p_msg);
/* send this packet to transport */
ps = (UINT8 *) (p_msg + 1) + p_msg->offset;
pp = ps + 1;
#ifdef DISP_NCI
delta = p_msg->len - len;
DISP_NCI (ps + delta, (UINT16) (p_msg->len - delta), FALSE);
#endif
if (nfc_hal_cb.hci_cb.hcp_conn_id)
{
NCI_DATA_PRS_HDR(pp, pbf, cid, data_len);
if (cid == nfc_hal_cb.hci_cb.hcp_conn_id)
{
if (nfc_hal_hci_handle_hcp_pkt_to_hc (pp))
{
HAL_TRACE_DEBUG0 ("nfc_hal_main_send_message() - Drop rsp to Fake cmd, Fake credit ntf");
GKI_freebuf (p_msg);
nfc_hal_send_credit_ntf_for_cid (cid);
return;
}
}
}
/* check low power mode state */
if (nfc_hal_dm_power_mode_execute (NFC_HAL_LP_TX_DATA_EVT))
{
USERIAL_Write (USERIAL_NFC_PORT, ps, p_msg->len);
}
else
{
HAL_TRACE_ERROR0 ("nfc_hal_main_send_message(): drop data in low power mode");
}
GKI_freebuf (p_msg);
}
}
/*******************************************************************************
**
** Function nfc_hal_main_task
**
** Description NFC HAL NCI transport event processing task
**
** Returns 0
**
*******************************************************************************/
UINT32 nfc_hal_main_task (UINT32 param)
{
UINT16 event;
UINT8 byte;
UINT8 num_interfaces;
UINT8 *p;
NFC_HDR *p_msg;
BOOLEAN free_msg;
HAL_TRACE_DEBUG0 ("NFC_HAL_TASK started");
/* Main loop */
while (TRUE)
{
event = GKI_wait (0xFFFF, 0);
/* Handle NFC_HAL_TASK_EVT_INITIALIZE (for initializing NCI transport) */
if (event & NFC_HAL_TASK_EVT_INITIALIZE)
{
HAL_TRACE_DEBUG0 ("NFC_HAL_TASK got NFC_HAL_TASK_EVT_INITIALIZE signal. Opening NFC transport...");
nfc_hal_main_open_transport ();
}
/* Check for terminate event */
if (event & NFC_HAL_TASK_EVT_TERMINATE)
{
HAL_TRACE_DEBUG0 ("NFC_HAL_TASK got NFC_HAL_TASK_EVT_TERMINATE");
nfc_hal_main_handle_terminate ();
/* Close uart */
USERIAL_Close (USERIAL_NFC_PORT);
if (nfc_hal_cb.p_stack_cback)
{
nfc_hal_cb.p_stack_cback (HAL_NFC_CLOSE_CPLT_EVT, HAL_NFC_STATUS_OK);
nfc_hal_cb.p_stack_cback = NULL;
}
continue;
}
/* Check for power cycle event */
if (event & NFC_HAL_TASK_EVT_POWER_CYCLE)
{
HAL_TRACE_DEBUG0 ("NFC_HAL_TASK got NFC_HAL_TASK_EVT_POWER_CYCLE");
nfc_hal_main_handle_terminate ();
/* Close uart */
USERIAL_Close (USERIAL_NFC_PORT);
/* power cycle timeout */
nfc_hal_main_start_quick_timer (&nfc_hal_cb.timer, NFC_HAL_TTYPE_POWER_CYCLE,
(NFC_HAL_POWER_CYCLE_DELAY*QUICK_TIMER_TICKS_PER_SEC)/1000);
continue;
}
/* NCI message ready to be sent to NFCC */
if (event & NFC_HAL_TASK_EVT_MBOX)
{
while ((p_msg = (NFC_HDR *) GKI_read_mbox (NFC_HAL_TASK_MBOX)) != NULL)
{
free_msg = TRUE;
switch (p_msg->event & NFC_EVT_MASK)
{
case NFC_HAL_EVT_TO_NFC_NCI:
nfc_hal_main_send_message (p_msg);
/* do not free buffer. NCI VS code may keep it for processing later */
free_msg = FALSE;
break;
case NFC_HAL_EVT_POST_CORE_RESET:
NFC_HAL_SET_INIT_STATE (NFC_HAL_INIT_STATE_W4_POST_INIT_DONE);
/* set NCI Control packet size from CORE_INIT_RSP */
p = (UINT8 *) (p_msg + 1) + p_msg->offset + NCI_MSG_HDR_SIZE;
p += 5;
STREAM_TO_UINT8 (num_interfaces, p);
p += (num_interfaces + 3);
nfc_hal_cb.ncit_cb.nci_ctrl_size = *p;
/* start post initialization */
nfc_hal_cb.dev_cb.next_dm_config = NFC_HAL_DM_CONFIG_LPTD;
nfc_hal_cb.dev_cb.next_startup_vsc = 1;
nfc_hal_dm_config_nfcc ();
break;
case NFC_HAL_EVT_TO_START_QUICK_TIMER:
GKI_start_timer (NFC_HAL_QUICK_TIMER_ID, ((GKI_SECS_TO_TICKS (1) / QUICK_TIMER_TICKS_PER_SEC)), TRUE);
break;
case NFC_HAL_EVT_HCI:
nfc_hal_hci_evt_hdlr ((tNFC_HAL_HCI_EVENT_DATA *) p_msg);
break;
case NFC_HAL_EVT_PRE_DISCOVER:
NFC_HAL_SET_INIT_STATE(NFC_HAL_INIT_STATE_W4_PREDISCOVER_DONE);
nfa_hal_send_pre_discover_cfg ();
break;
case NFC_HAL_EVT_CONTROL_GRANTED:
nfc_hal_dm_send_pend_cmd ();
break;
default:
break;
}
if (free_msg)
GKI_freebuf (p_msg);
}
}
/* Data waiting to be read from serial port */
if (event & NFC_HAL_TASK_EVT_DATA_RDY)
{
while (TRUE)
{
/* Read one byte to see if there is anything waiting to be read */
if (USERIAL_Read (USERIAL_NFC_PORT, &byte, 1) == 0)
{
break;
}
if (nfc_hal_nci_receive_msg (byte))
{
/* complete of receiving NCI message */
nfc_hal_nci_assemble_nci_msg ();
if (nfc_hal_cb.ncit_cb.p_rcv_msg)
{
if (nfc_hal_nci_preproc_rx_nci_msg (nfc_hal_cb.ncit_cb.p_rcv_msg))
{
/* Send NCI message to the stack */
nfc_hal_send_nci_msg_to_nfc_task (nfc_hal_cb.ncit_cb.p_rcv_msg);
}
else
{
if (nfc_hal_cb.ncit_cb.p_rcv_msg)
GKI_freebuf(nfc_hal_cb.ncit_cb.p_rcv_msg);
}
nfc_hal_cb.ncit_cb.p_rcv_msg = NULL;
}
}
} /* while (TRUE) */
}
/* Process quick timer tick */
if (event & NFC_HAL_QUICK_TIMER_EVT_MASK)
{
nfc_hal_main_process_quick_timer_evt ();
}
}
HAL_TRACE_DEBUG0 ("nfc_hal_main_task terminated");
GKI_exit_task (GKI_get_taskid ());
return 0;
}
/*******************************************************************************
**
** Function HAL_NfcSetTraceLevel
**
** Description This function sets the trace level for HAL. If called with
** a value of 0xFF, it simply returns the current trace level.
**
** Returns The new or current trace level
**
*******************************************************************************/
UINT8 HAL_NfcSetTraceLevel (UINT8 new_level)
{
if (new_level != 0xFF)
nfc_hal_cb.trace_level = new_level;
return (nfc_hal_cb.trace_level);
}