/** NOTE: This is only called on init and may be called without the GKI_disable()
* lock held.
*/
static void alarm_service_init()
{
alarm_service.ticks_scheduled = 0;
alarm_service.timer_started_us = 0;
alarm_service.timer_last_expired_us = 0;
alarm_service.wakelock = FALSE;
raise_priority_a2dp(TASK_JAVA_ALARM);
}
static int init(const bt_hc_callbacks_t* p_cb, unsigned char *local_bdaddr)
{
int result;
ALOGI("init");
if (p_cb == NULL)
{
ALOGE("init failed with no user callbacks!");
return BT_HC_STATUS_FAIL;
}
hc_cb.epilog_timer_created = false;
fwcfg_acked = false;
has_cleaned_up = false;
pthread_mutex_init(&hc_cb.worker_thread_lock, NULL);
/* store reference to user callbacks */
bt_hc_cbacks = (bt_hc_callbacks_t *) p_cb;
vendor_open(local_bdaddr);
utils_init();
#ifdef HCI_USE_MCT
extern tHCI_IF hci_mct_func_table;
p_hci_if = &hci_mct_func_table;
#else
extern tHCI_IF hci_h4_func_table;
p_hci_if = &hci_h4_func_table;
#endif
p_hci_if->init();
userial_init();
lpm_init();
utils_queue_init(&tx_q);
if (hc_cb.worker_thread)
{
ALOGW("init has been called repeatedly without calling cleanup ?");
}
// Set prio here and let hci worker thread inherit prio
// remove once new thread api (thread_set_priority() ?)
// can switch prio
raise_priority_a2dp(TASK_HIGH_HCI_WORKER);
hc_cb.worker_thread = thread_new("bt_hc_worker");
if (!hc_cb.worker_thread) {
ALOGE("%s unable to create worker thread.", __func__);
return BT_HC_STATUS_FAIL;
}
return BT_HC_STATUS_SUCCESS;
}
void* timer_thread(void *arg)
{
int timeout_ns=0;
struct timespec timeout;
struct timespec previous = {0,0};
struct timespec current;
int err;
int delta_ns;
int restart;
tGKI_OS *p_os = &gki_cb.os;
int *p_run_cond = &p_os->no_timer_suspend;
/* Indicate that tick is just starting */
restart = 1;
prctl(PR_SET_NAME, (unsigned long)"gki timer", 0, 0, 0);
raise_priority_a2dp(TASK_HIGH_GKI_TIMER);
while(!shutdown_timer)
{
/* If the timer has been stopped (no SW timer running) */
if (*p_run_cond == GKI_TIMER_TICK_STOP_COND)
{
/*
* We will lock/wait on GKI_timer_mutex.
* This mutex will be unlocked when timer is re-started
*/
GKI_TRACE("GKI_run lock mutex");
pthread_mutex_lock(&p_os->gki_timer_mutex);
/* We are here because the mutex has been released by timer cback */
/* Let's release it for future use */
GKI_TRACE("GKI_run unlock mutex");
pthread_mutex_unlock(&p_os->gki_timer_mutex);
/* Indicate that tick is just starting */
restart = 1;
}
/* Get time */
clock_gettime(CLOCK_MONOTONIC, ¤t);
/* Check if tick was just restarted, indicating to the compiler that this is
* unlikely to happen (to help branch prediction) */
if (__unlikely(restart))
{
/* Clear the restart indication */
restart = 0;
timeout_ns = (GKI_TICKS_TO_MS(1) * 1000000);
}
else
{
/* Compute time elapsed since last sleep start */
delta_ns = current.tv_nsec - previous.tv_nsec;
delta_ns += (current.tv_sec - previous.tv_sec) * 1000000000;
/* Compute next timeout:
* timeout = (next theoretical expiration) - current time
* timeout = (previous time + timeout + delay) - current time
* timeout = timeout + delay - (current time - previous time)
* timeout += delay - delta */
timeout_ns += (GKI_TICKS_TO_MS(1) * 1000000) - delta_ns;
}
/* Save the current time for next iteration */
previous = current;
timeout.tv_sec = 0;
/* Sleep until next theoretical tick time. In case of excessive
elapsed time since last theoretical tick expiration, it is
possible that the timeout value is negative. To protect
against this error, we set minimum sleep time to 10% of the
tick period. We indicate to compiler that this is unlikely to
happen (to help branch prediction) */
if (__unlikely(timeout_ns < ((GKI_TICKS_TO_MS(1) * 1000000) * 0.1)))
{
timeout.tv_nsec = (GKI_TICKS_TO_MS(1) * 1000000) * 0.1;
/* Print error message if tick really got delayed
(more than 5 ticks) */
if (timeout_ns < GKI_TICKS_TO_MS(-5) * 1000000)
{
GKI_ERROR_LOG("tick delayed > 5 slots (%d,%d) -- cpu overload ? ",
timeout_ns, GKI_TICKS_TO_MS(-5) * 1000000);
}
}
else
{
timeout.tv_nsec = timeout_ns;
}
do
{
/* [u]sleep can't be used because it uses SIGALRM */
err = nanosleep(&timeout, &timeout);
} while (err < 0 && errno == EINTR);
/* Increment the GKI time value by one tick and update internal timers */
GKI_timer_update(1);
}
GKI_TRACE("gki_ulinux: Exiting timer_thread");
pthread_exit(NULL);
return NULL;
}
/*******************************************************************************
**
** Function bt_hc_worker_thread
**
** Description Mian worker thread
**
** Returns void *
**
*******************************************************************************/
static void *bt_hc_worker_thread(void *arg)
{
uint16_t events;
HC_BT_HDR *p_msg, *p_next_msg;
ALOGI("bt_hc_worker_thread started");
prctl(PR_SET_NAME, (unsigned long)"bt_hc_worker", 0, 0, 0);
tx_cmd_pkts_pending = FALSE;
raise_priority_a2dp(TASK_HIGH_HCI_WORKER);
while (lib_running)
{
pthread_mutex_lock(&hc_cb.mutex);
while (ready_events == 0)
{
pthread_cond_wait(&hc_cb.cond, &hc_cb.mutex);
}
events = ready_events;
ready_events = 0;
pthread_mutex_unlock(&hc_cb.mutex);
if (events & HC_EVENT_RX && ( p_hci_if->rcv != NULL))
{
p_hci_if->rcv();
if ((tx_cmd_pkts_pending == TRUE) && (num_hci_cmd_pkts > 0))
{
/* Got HCI Cmd Credits from Controller.
* Prepare to send prior pending Cmd packets in the
* following HC_EVENT_TX session.
*/
events |= HC_EVENT_TX;
}
}
if (events & HC_EVENT_PRELOAD)
{
p_userial_if->open(USERIAL_PORT_1);
/* Calling vendor-specific part */
if (bt_vnd_if)
{
bt_vnd_if->op(BT_VND_OP_FW_CFG, NULL);
}
else
{
if (bt_hc_cbacks)
bt_hc_cbacks->preload_cb(NULL, BT_HC_PRELOAD_FAIL);
}
}
if (events & HC_EVENT_POSTLOAD)
{
/* Start from SCO related H/W configuration, if SCO configuration
* is required. Then, follow with reading requests of getting
* ACL data length for both BR/EDR and LE.
*/
int result = -1;
/* Calling vendor-specific part */
if (bt_vnd_if)
result = bt_vnd_if->op(BT_VND_OP_SCO_CFG, NULL);
if (result == -1)
p_hci_if->get_acl_max_len();
}
if (events & HC_EVENT_TX)
{
/*
* We will go through every packets in the tx queue.
* Fine to clear tx_cmd_pkts_pending.
*/
tx_cmd_pkts_pending = FALSE;
HC_BT_HDR * sending_msg_que[64];
int sending_msg_count = 0;
int sending_hci_cmd_pkts_count = 0;
utils_lock();
p_next_msg = tx_q.p_first;
while (p_next_msg && sending_msg_count <
(int)sizeof(sending_msg_que)/sizeof(sending_msg_que[0]))
{
if ((p_next_msg->event & MSG_EVT_MASK)==MSG_STACK_TO_HC_HCI_CMD)
{
/*
* if we have used up controller's outstanding HCI command
* credits (normally is 1), skip all HCI command packets in
* the queue.
* The pending command packets will be sent once controller
* gives back us credits through CommandCompleteEvent or
* CommandStatusEvent.
*/
if ((tx_cmd_pkts_pending == TRUE) ||
(sending_hci_cmd_pkts_count >= num_hci_cmd_pkts))
{
tx_cmd_pkts_pending = TRUE;
p_next_msg = utils_getnext(p_next_msg);
continue;
}
sending_hci_cmd_pkts_count++;
}
p_msg = p_next_msg;
p_next_msg = utils_getnext(p_msg);
utils_remove_from_queue_unlocked(&tx_q, p_msg);
sending_msg_que[sending_msg_count++] = p_msg;
}
utils_unlock();
int i;
for(i = 0; i < sending_msg_count; i++)
p_hci_if->send(sending_msg_que[i]);
if (tx_cmd_pkts_pending == TRUE)
BTHCDBG("Used up Tx Cmd credits");
}
if (events & HC_EVENT_LPM_ENABLE)
{
lpm_enable(TRUE);
}
if (events & HC_EVENT_LPM_DISABLE)
{
lpm_enable(FALSE);
}
if (events & HC_EVENT_LPM_IDLE_TIMEOUT)
{
lpm_wake_deassert();
}
if (events & HC_EVENT_LPM_ALLOW_SLEEP)
{
lpm_allow_bt_device_sleep();
}
if (events & HC_EVENT_LPM_WAKE_DEVICE)
{
lpm_wake_assert();
}
if (events & HC_EVENT_EPILOG)
{
/* Calling vendor-specific part */
if (bt_vnd_if)
bt_vnd_if->op(BT_VND_OP_EPILOG, NULL);
else
break; // equivalent to HC_EVENT_EXIT
}
if (events & HC_EVENT_EXIT)
break;
}
ALOGI("bt_hc_worker_thread exiting");
lib_running = 0;
pthread_exit(NULL);
return NULL; // compiler friendly
}
/*******************************************************************************
**
** Function userial_evt_read_thread
**
** Description The reading thread on EVT and ACL_IN channels
**
** Returns void *
**
*******************************************************************************/
static void *userial_read_thread(void *arg)
{
fd_set input;
int n;
char reason = 0;
USERIALDBG("Entering userial_read_thread()");
rx_flow_on = TRUE;
userial_running = 1;
raise_priority_a2dp(TASK_HIGH_USERIAL_READ);
while (userial_running)
{
/* Initialize the input fd set */
FD_ZERO(&input);
if (rx_flow_on == TRUE)
{
FD_SET(userial_cb.fd[CH_EVT], &input);
FD_SET(userial_cb.fd[CH_ACL_IN], &input);
}
int fd_max = create_signal_fds(&input);
fd_max = (fd_max>userial_cb.fd[CH_EVT]) ? fd_max : userial_cb.fd[CH_EVT];
fd_max = (fd_max>userial_cb.fd[CH_ACL_IN]) ? fd_max : userial_cb.fd[CH_ACL_IN];
/* Do the select */
n = 0;
n = select(fd_max+1, &input, NULL, NULL, NULL);
if(is_signaled(&input))
{
reason = reset_signal();
if (reason == USERIAL_RX_EXIT)
{
ALOGI("exiting userial_read_thread");
userial_running = 0;
break;
}
else if (reason == USERIAL_RX_FLOW_OFF)
{
USERIALDBG("RX flow OFF");
rx_flow_on = FALSE;
}
else if (reason == USERIAL_RX_FLOW_ON)
{
USERIALDBG("RX flow ON");
rx_flow_on = TRUE;
}
}
if (n > 0)
{
/* We might have input */
if (FD_ISSET(userial_cb.fd[CH_EVT], &input))
{
hci_mct_receive_evt_msg();
}
if (FD_ISSET(userial_cb.fd[CH_ACL_IN], &input))
{
hci_mct_receive_acl_msg();
}
}
else if (n < 0)
ALOGW( "select() Failed");
else if (n == 0)
ALOGW( "Got a select() TIMEOUT");
} /* while */
userial_running = 0;
USERIALDBG("Leaving userial_evt_read_thread()");
pthread_exit(NULL);
return NULL; // Compiler friendly
}
/*******************************************************************************
**
** Function btu_task
**
** Description This is the main task of the Bluetooth Upper Layers unit.
** It sits in a loop waiting for messages, and dispatches them
** to the appropiate handlers.
**
** Returns should never return
**
*******************************************************************************/
BTU_API UINT32 btu_task (UINT32 param)
{
UINT16 event;
BT_HDR *p_msg;
UINT8 i;
UINT16 mask;
BOOLEAN handled;
#if (defined(HCISU_H4_INCLUDED) && HCISU_H4_INCLUDED == TRUE)
/* wait an event that HCISU is ready */
GKI_wait(0xFFFF, 0);
#endif
/* Initialize the mandatory core stack control blocks
(BTU, BTM, L2CAP, and SDP)
*/
btu_init_core();
/* Initialize any optional stack components */
BTE_InitStack();
#if (defined(BTU_BTA_INCLUDED) && BTU_BTA_INCLUDED == TRUE)
bta_sys_init();
#endif
/* Initialise platform trace levels at this point as BTE_InitStack() and bta_sys_init()
* reset the control blocks and preset the trace level with XXX_INITIAL_TRACE_LEVEL
*/
#if ( BT_USE_TRACES==TRUE )
BTE_InitTraceLevels();
#endif
/* Send a startup evt message to BTIF_TASK to kickstart the init procedure */
GKI_send_event(BTIF_TASK, BT_EVT_TRIGGER_STACK_INIT);
raise_priority_a2dp(TASK_HIGH_BTU);
/* Wait for, and process, events */
for (;;)
{
event = GKI_wait (0xFFFF, 0);
if (event & TASK_MBOX_0_EVT_MASK)
{
/* Process all messages in the queue */
while ((p_msg = (BT_HDR *) GKI_read_mbox (BTU_HCI_RCV_MBOX)) != NULL)
{
/* Determine the input message type. */
switch (p_msg->event & BT_EVT_MASK)
{
case BT_EVT_TO_BTU_HCI_ACL:
/* All Acl Data goes to L2CAP */
l2c_rcv_acl_data (p_msg);
break;
case BT_EVT_TO_BTU_L2C_SEG_XMIT:
/* L2CAP segment transmit complete */
l2c_link_segments_xmitted (p_msg);
break;
case BT_EVT_TO_BTU_HCI_SCO:
#if BTM_SCO_INCLUDED == TRUE
btm_route_sco_data (p_msg);
break;
#endif
case BT_EVT_TO_BTU_HCI_EVT:
btu_hcif_process_event ((UINT8)(p_msg->event & BT_SUB_EVT_MASK), p_msg);
GKI_freebuf(p_msg);
#if (defined(HCILP_INCLUDED) && HCILP_INCLUDED == TRUE)
/* If host receives events which it doesn't response to, */
/* host should start idle timer to enter sleep mode. */
btu_check_bt_sleep ();
#endif
break;
case BT_EVT_TO_BTU_HCI_CMD:
btu_hcif_send_cmd ((UINT8)(p_msg->event & BT_SUB_EVT_MASK), p_msg);
break;
#if (defined(OBX_INCLUDED) && OBX_INCLUDED == TRUE)
#if (defined(OBX_SERVER_INCLUDED) && OBX_SERVER_INCLUDED == TRUE)
case BT_EVT_TO_OBX_SR_MSG:
obx_sr_proc_evt((tOBX_PORT_EVT *)(p_msg + 1));
GKI_freebuf (p_msg);
break;
case BT_EVT_TO_OBX_SR_L2C_MSG:
obx_sr_proc_l2c_evt((tOBX_L2C_EVT_MSG *)(p_msg + 1));
GKI_freebuf (p_msg);
break;
#endif
#if (defined(OBX_CLIENT_INCLUDED) && OBX_CLIENT_INCLUDED == TRUE)
case BT_EVT_TO_OBX_CL_MSG:
obx_cl_proc_evt((tOBX_PORT_EVT *)(p_msg + 1));
GKI_freebuf (p_msg);
break;
case BT_EVT_TO_OBX_CL_L2C_MSG:
obx_cl_proc_l2c_evt((tOBX_L2C_EVT_MSG *)(p_msg + 1));
GKI_freebuf (p_msg);
break;
#endif
#if (defined(BIP_INCLUDED) && BIP_INCLUDED == TRUE)
case BT_EVT_TO_BIP_CMDS :
bip_proc_btu_event(p_msg);
GKI_freebuf (p_msg);
break;
#endif /* BIP */
#if (BPP_SND_INCLUDED == TRUE || BPP_INCLUDED == TRUE)
case BT_EVT_TO_BPP_PR_CMDS:
bpp_pr_proc_event(p_msg);
GKI_freebuf (p_msg);
break;
case BT_EVT_TO_BPP_SND_CMDS:
bpp_snd_proc_event(p_msg);
GKI_freebuf (p_msg);
break;
#endif /* BPP */
#endif /* OBX */
#if (defined(SAP_SERVER_INCLUDED) && SAP_SERVER_INCLUDED == TRUE)
case BT_EVT_TO_BTU_SAP :
sap_proc_btu_event(p_msg);
GKI_freebuf (p_msg);
break;
#endif /* SAP */
#if (defined(GAP_CONN_INCLUDED) && GAP_CONN_INCLUDED == TRUE && GAP_CONN_POST_EVT_INCLUDED == TRUE)
case BT_EVT_TO_GAP_MSG :
gap_proc_btu_event(p_msg);
GKI_freebuf (p_msg);
break;
#endif
case BT_EVT_TO_START_TIMER :
/* Start free running 1 second timer for list management */
GKI_start_timer (TIMER_0, GKI_SECS_TO_TICKS (1), TRUE);
GKI_freebuf (p_msg);
break;
#if defined(QUICK_TIMER_TICKS_PER_SEC) && (QUICK_TIMER_TICKS_PER_SEC > 0)
case BT_EVT_TO_START_QUICK_TIMER :
GKI_start_timer (TIMER_2, QUICK_TIMER_TICKS, TRUE);
GKI_freebuf (p_msg);
break;
#endif
default:
i = 0;
mask = (UINT16) (p_msg->event & BT_EVT_MASK);
handled = FALSE;
for (; !handled && i < BTU_MAX_REG_EVENT; i++)
{
if (btu_cb.event_reg[i].event_cb == NULL)
continue;
if (mask == btu_cb.event_reg[i].event_range)
{
if (btu_cb.event_reg[i].event_cb)
{
btu_cb.event_reg[i].event_cb(p_msg);
handled = TRUE;
}
}
}
if (handled == FALSE)
GKI_freebuf (p_msg);
break;
}
}
}
if (event & TIMER_0_EVT_MASK)
{
TIMER_LIST_ENT *p_tle;
GKI_update_timer_list (&btu_cb.timer_queue, 1);
while ((btu_cb.timer_queue.p_first) && (!btu_cb.timer_queue.p_first->ticks))
{
p_tle = btu_cb.timer_queue.p_first;
GKI_remove_from_timer_list (&btu_cb.timer_queue, p_tle);
switch (p_tle->event)
{
case BTU_TTYPE_BTM_DEV_CTL:
btm_dev_timeout(p_tle);
break;
case BTU_TTYPE_BTM_ACL:
btm_acl_timeout(p_tle);
break;
case BTU_TTYPE_L2CAP_LINK:
case BTU_TTYPE_L2CAP_CHNL:
case BTU_TTYPE_L2CAP_HOLD:
case BTU_TTYPE_L2CAP_INFO:
case BTU_TTYPE_L2CAP_FCR_ACK:
l2c_process_timeout (p_tle);
break;
case BTU_TTYPE_SDP:
sdp_conn_timeout ((tCONN_CB *)p_tle->param);
break;
case BTU_TTYPE_BTM_RMT_NAME:
btm_inq_rmt_name_failed();
break;
#if (defined(RFCOMM_INCLUDED) && RFCOMM_INCLUDED == TRUE)
case BTU_TTYPE_RFCOMM_MFC:
case BTU_TTYPE_RFCOMM_PORT:
rfcomm_process_timeout (p_tle);
break;
#endif /* If defined(RFCOMM_INCLUDED) && RFCOMM_INCLUDED == TRUE */
#if ((defined(BNEP_INCLUDED) && BNEP_INCLUDED == TRUE))
case BTU_TTYPE_BNEP:
bnep_process_timeout(p_tle);
break;
#endif
#if (defined(AVDT_INCLUDED) && AVDT_INCLUDED == TRUE)
case BTU_TTYPE_AVDT_CCB_RET:
case BTU_TTYPE_AVDT_CCB_RSP:
case BTU_TTYPE_AVDT_CCB_IDLE:
case BTU_TTYPE_AVDT_SCB_TC:
avdt_process_timeout(p_tle);
break;
#endif
#if (defined(OBX_INCLUDED) && OBX_INCLUDED == TRUE)
#if (defined(OBX_CLIENT_INCLUDED) && OBX_CLIENT_INCLUDED == TRUE)
case BTU_TTYPE_OBX_CLIENT_TO:
obx_cl_timeout(p_tle);
break;
#endif
#if (defined(OBX_SERVER_INCLUDED) && OBX_SERVER_INCLUDED == TRUE)
case BTU_TTYPE_OBX_SERVER_TO:
obx_sr_timeout(p_tle);
break;
case BTU_TTYPE_OBX_SVR_SESS_TO:
obx_sr_sess_timeout(p_tle);
break;
#endif
#endif
#if (defined(SAP_SERVER_INCLUDED) && SAP_SERVER_INCLUDED == TRUE)
case BTU_TTYPE_SAP_TO:
sap_process_timeout(p_tle);
break;
#endif
case BTU_TTYPE_BTU_CMD_CMPL:
btu_hcif_cmd_timeout((UINT8)(p_tle->event - BTU_TTYPE_BTU_CMD_CMPL));
break;
#if (defined(HID_HOST_INCLUDED) && HID_HOST_INCLUDED == TRUE)
case BTU_TTYPE_HID_HOST_REPAGE_TO :
hidh_proc_repage_timeout(p_tle);
break;
#endif
#if (defined(BLE_INCLUDED) && BLE_INCLUDED == TRUE)
case BTU_TTYPE_BLE_INQUIRY:
case BTU_TTYPE_BLE_GAP_LIM_DISC:
case BTU_TTYPE_BLE_RANDOM_ADDR:
btm_ble_timeout(p_tle);
break;
case BTU_TTYPE_BLE_SCAN_PARAM_IDLE:
btm_ble_scan_param_idle();
break;
case BTU_TTYPE_ATT_WAIT_FOR_RSP:
gatt_rsp_timeout(p_tle);
break;
case BTU_TTYPE_ATT_WAIT_FOR_IND_ACK:
gatt_ind_ack_timeout(p_tle);
break;
#if (defined(SMP_INCLUDED) && SMP_INCLUDED == TRUE)
case BTU_TTYPE_SMP_PAIRING_CMD:
smp_rsp_timeout(p_tle);
break;
#endif
#endif
#if (MCA_INCLUDED == TRUE)
case BTU_TTYPE_MCA_CCB_RSP:
mca_process_timeout(p_tle);
break;
#endif
case BTU_TTYPE_USER_FUNC:
{
tUSER_TIMEOUT_FUNC *p_uf = (tUSER_TIMEOUT_FUNC *)p_tle->param;
(*p_uf)(p_tle);
}
break;
default:
i = 0;
handled = FALSE;
for (; !handled && i < BTU_MAX_REG_TIMER; i++)
{
if (btu_cb.timer_reg[i].timer_cb == NULL)
continue;
if (btu_cb.timer_reg[i].p_tle == p_tle)
{
btu_cb.timer_reg[i].timer_cb(p_tle);
handled = TRUE;
}
}
break;
}
}
/* if timer list is empty stop periodic GKI timer */
if (btu_cb.timer_queue.p_first == NULL)
{
GKI_stop_timer(TIMER_0);
}
}
#if defined(QUICK_TIMER_TICKS_PER_SEC) && (QUICK_TIMER_TICKS_PER_SEC > 0)
if (event & TIMER_2_EVT_MASK)
{
btu_process_quick_timer_evt();
}
#endif
#if (RPC_INCLUDED == TRUE)
/* if RPC message queue event */
if (event & RPCGEN_MSG_EVT)
{
if ((p_msg = (BT_HDR *) GKI_read_mbox(RPCGEN_MSG_MBOX)) != NULL)
RPCT_RpcgenMsg(p_msg); /* handle RPC message queue */
}
#endif
#if (defined(BTU_BTA_INCLUDED) && BTU_BTA_INCLUDED == TRUE)
if (event & TASK_MBOX_2_EVT_MASK)
{
while ((p_msg = (BT_HDR *) GKI_read_mbox(TASK_MBOX_2)) != NULL)
{
bta_sys_event(p_msg);
}
}
if (event & TIMER_1_EVT_MASK)
{
bta_sys_timer_update();
}
#endif
if (event & EVENT_MASK(APPL_EVT_7))
break;
}
return(0);
}
/*******************************************************************************
**
** Function userial_read_thread
**
** Description
**
** Returns void *
**
*******************************************************************************/
static void *userial_read_thread(void *arg)
{
int rx_length = 0;
HC_BT_HDR *p_buf = NULL;
uint8_t *p;
USERIALDBG("Entering userial_read_thread()");
prctl(PR_SET_NAME, (unsigned long)"userial_read", 0, 0, 0);
rx_flow_on = TRUE;
userial_running = 1;
raise_priority_a2dp(TASK_HIGH_USERIAL_READ);
while (userial_running)
{
if (bt_hc_cbacks)
{
p_buf = (HC_BT_HDR *) bt_hc_cbacks->alloc( \
BTHC_USERIAL_READ_MEM_SIZE);
}
else
p_buf = NULL;
if (p_buf != NULL)
{
p_buf->offset = 0;
p_buf->layer_specific = 0;
p = (uint8_t *) (p_buf + 1);
rx_length = select_read(userial_cb.fd, p, READ_LIMIT);
}
else
{
rx_length = 0;
utils_delay(100);
ALOGW("userial_read_thread() failed to gain buffers");
continue;
}
if (rx_length > 0)
{
p_buf->len = (uint16_t)rx_length;
utils_enqueue(&(userial_cb.rx_q), p_buf);
bthc_signal_event(HC_EVENT_RX);
}
else /* either 0 or < 0 */
{
ALOGW("select_read return size <=0:%d, exiting userial_read_thread",\
rx_length);
/* if we get here, we should have a buffer */
bt_hc_cbacks->dealloc((TRANSAC) p_buf, (char *) (p_buf + 1));
/* negative value means exit thread */
break;
}
} /* for */
userial_running = 0;
USERIALDBG("Leaving userial_read_thread()");
pthread_exit(NULL);
return NULL; // Compiler friendly
}
