NFCSTATUS phDal4Nfc_Write( void *pContext, void *pHwRef,uint8_t *pBuffer, uint16_t length)
{
NFCSTATUS result = NFCSTATUS_SUCCESS;
static int MsgType= PHDAL4NFC_WRITE_MESSAGE;
int * pmsgType=&MsgType;
phDal4Nfc_Message_t sMsg;
phOsalNfc_Message_t OsalMsg;
if ((NULL != pContext) && (NULL != pHwRef)&&
(NULL != pBuffer) && (0 != length))
{
if( gDalContext.hw_valid== TRUE)
{
if((!gReadWriteContext.nWriteBusy)&&
(!gReadWriteContext.nWaitingOnWrite))
{
DAL_PRINT("phDal4Nfc_Write() : Temporary buffer !! \n");
gReadWriteContext.pTempWriteBuffer = (uint8_t*)malloc(length * sizeof(uint8_t));
/* Make a copy of the passed arguments */
memcpy(gReadWriteContext.pTempWriteBuffer,pBuffer,length);
DAL_DEBUG("phDal4Nfc_Write(): %d\n", length);
gReadWriteContext.pWriteBuffer = gReadWriteContext.pTempWriteBuffer;
gReadWriteContext.nNbOfBytesToWrite = length;
/* Change the write state so that thread can take over the write */
gReadWriteContext.nWriteBusy = TRUE;
/* Just set variable here. This is the trigger for the Write thread */
gReadWriteContext.nWaitingOnWrite = TRUE;
/* Update the error state */
result = NFCSTATUS_PENDING;
/* Send Message and perform physical write in the DefferedCallback */
/* read completed immediately */
sMsg.eMsgType= PHDAL4NFC_WRITE_MESSAGE;
/* Update the state */
phDal4Nfc_FillMsg(&sMsg,&OsalMsg);
phDal4Nfc_DeferredCall((pphDal4Nfc_DeferFuncPointer_t)phDal4Nfc_DeferredCb,(void *)pmsgType);
memset(&sMsg,0,sizeof(phDal4Nfc_Message_t));
memset(&OsalMsg,0,sizeof(phOsalNfc_Message_t));
}
else
{
/* Driver is BUSY with previous Write */
DAL_PRINT("phDal4Nfc_Write() : Busy \n");
result = PHNFCSTVAL(CID_NFC_DAL, NFCSTATUS_BUSY) ;
}
}
else
{
/* TBD :Additional error code : NOT_INITIALISED */
result = PHNFCSTVAL(CID_NFC_DAL, NFCSTATUS_INVALID_DEVICE);
}
}/*end if-Input parametrs valid-check*/
else
{
result = NFCSTATUS_INVALID_PARAMETER;
}
return result;
}
NFCSTATUS phDal4Nfc_ConfigRelease(void *pHwRef)
{
NFCSTATUS result = NFCSTATUS_SUCCESS;
void * pThreadReturn;
DAL_PRINT("phDal4Nfc_ConfigRelease ");
if (gDalContext.hw_valid == TRUE)
{
/* Signal the read and write threads to exit. NOTE: there
actually is no write thread! :) */
DAL_PRINT("Stop Reader Thread");
gReadWriteContext.nReadThreadAlive = 0;
gReadWriteContext.nWriteThreadAlive = 0;
/* Wake up the read thread so it can exit */
DAL_PRINT("Release Read Semaphore");
sem_post(&nfc_read_sem);
DAL_DEBUG("phDal4Nfc_ConfigRelease - doing pthread_join(%d)",
gReadWriteContext.nReadThread);
if (pthread_join(gReadWriteContext.nReadThread, &pThreadReturn) != 0)
{
result = PHNFCSTVAL(CID_NFC_DAL, NFCSTATUS_FAILED);
DAL_PRINT("phDal4Nfc_ConfigRelease KO");
}
/* Close the message queue */
#ifdef USE_MQ_MESSAGE_QUEUE
mq_close(nDeferedCallMessageQueueId);
#endif
/* Shutdown NFC Chip */
phDal4Nfc_Reset(0);
/* Close the link */
gLinkFunc.close();
if (gDalContext.pDev != NULL) {
nfc_pn544_close(gDalContext.pDev);
}
/* Reset the Read Writer context to NULL */
memset((void *)&gReadWriteContext,0,sizeof(gReadWriteContext));
/* Reset the DAL context values to NULL */
memset((void *)&gDalContext,0,sizeof(gDalContext));
}
gDalContext.hw_valid = FALSE;
DAL_DEBUG("phDal4Nfc_ConfigRelease(): %04x\n", result);
return result;
}
int phDal4Nfc_uart_write(uint8_t * pBuffer, int nNbBytesToWrite)
{
int ret;
int numWrote = 0;
DAL_ASSERT_STR(gComPortContext.nOpened == 1, "write called but not opened!");
DAL_DEBUG("_uart_write() called to write %d bytes\n", nNbBytesToWrite);
/* Samsung modify for TIZEN */
#if 0
while (numWrote < nNbBytesToWrite) {
ret = write(gComPortContext.nHandle, pBuffer + numWrote, nNbBytesToWrite - numWrote);
if (ret > 0) {
DAL_DEBUG("wrote %d bytes", ret);
numWrote += ret;
} else if (ret == 0) {
DAL_PRINT("_uart_write() EOF");
return -1;
} else {
DAL_DEBUG("_uart_write() errno=%d", errno);
if (errno == EINTR || errno == EAGAIN) {
continue;
}
return -1;
}
}
#endif
return numWrote;
}
NFCSTATUS phDal4Nfc_ReadWaitCancel( void *pContext, void *pHwRef)
{
DAL_PRINT("phDal4Nfc_ReadWaitCancel");
/* unlock read semaphore */
sem_post(&nfc_read_sem);
return 0;
}
NFCSTATUS phDal4Nfc_Read( void *pContext, void *pHwRef,uint8_t *pBuffer, uint16_t length)
{
NFCSTATUS result = NFCSTATUS_SUCCESS;
if ((NULL != pContext) && (NULL != pHwRef)&&
(NULL != pBuffer) && (0 != length))
{
if ( gDalContext.hw_valid== TRUE)
{
if((!gReadWriteContext.nReadBusy)&&
(!gReadWriteContext.nWaitingOnRead))
{
DAL_DEBUG("*****DAl Read called length : %d\n", length);
/* Make a copy of the passed arguments */
gReadWriteContext.pReadBuffer = pBuffer;
gReadWriteContext.nNbOfBytesToRead = length;
/* Change the Read state so that thread can take over the read */
gReadWriteContext.nReadBusy = TRUE;
/* Just set variable here. This is the trigger for the Reader thread */
gReadWriteContext.nWaitingOnRead = TRUE;
/* Update the return state */
result = NFCSTATUS_PENDING;
/* unlock reader thread */
sem_post(&nfc_read_sem);
}
else
{
/* Driver is BUSY with prev Read */
DAL_PRINT("DAL BUSY\n");
/* Make a copy of the passed arguments */
gReadWriteContext.pReadBuffer = pBuffer;
gReadWriteContext.nNbOfBytesToRead = length;
result = NFCSTATUS_PENDING;
}
}
else
{
/* TBD :Additional error code : NOT_INITIALISED */
result = PHNFCSTVAL(CID_NFC_DAL, NFCSTATUS_INVALID_DEVICE);
}
}/*end if-Input parametrs valid-check*/
else
{
result = NFCSTATUS_INVALID_PARAMETER;
}
DAL_DEBUG("*****DAl Read called result : %x\n", result);
return result;
}
/**
* \ingroup grp_nfc_dal
*
* \brief DAL Start threads function
* This function is called from phDal4Nfc_Config and is responsible of creating the
* reader thread.
*
* \retval NFCSTATUS_SUCCESS If success.
* \retval NFCSTATUS_FAILED Can not create thread or retreive its attributes
*/
NFCSTATUS phDal4Nfc_StartThreads(void)
{
pthread_attr_t nReadThreadAttributes;
pthread_attr_t nWriteThreadAttributes;
int ret;
if(sem_init(&nfc_read_sem, 0, 0) == -1)
{
DAL_PRINT("NFC Init Semaphore creation Error");
return -1;
}
ret = pthread_create(&gReadWriteContext.nReadThread, NULL, (pphDal4Nfc_thread_handler_t)phDal4Nfc_ReaderThread, (void*) "dal_read_thread");
if(ret != 0)
return(PHNFCSTVAL(CID_NFC_DAL, NFCSTATUS_FAILED));
return NFCSTATUS_SUCCESS;
}
int
dal_mpool_debug(dal_mpool_mem_t* pool)
{
dal_mpool_mem_t* ptr;
int index = 0;
MPOOL_LOCK();
for (ptr = pool; ptr; ptr = ptr->next)
{
// DAL_PRINT("%2dst mpool block: address=0x%8x, size=0x%x \n", index, (unsigned int)ptr->address, ptr->size);
DAL_PRINT("%2dst mpool block: address=%p, size=0x%x \n", index, ptr->address, ptr->size); // note
index++;
}
MPOOL_UNLOCK();
return 0;
}
/*-----------------------------------------------------------------------------
FUNCTION: phDal4Nfc_uart_write
PURPOSE: Put the PN544 in download mode, using the GPIO4 pin
-----------------------------------------------------------------------------*/
int phDal4Nfc_uart_download()
{
DAL_PRINT("phDal4Nfc_uart_download");
return NFCSTATUS_FEATURE_NOT_SUPPORTED;
}
/*-----------------------------------------------------------------------------
FUNCTION: phDal4Nfc_uart_reset
PURPOSE: Reset the PN544, using the VEN pin
-----------------------------------------------------------------------------*/
int phDal4Nfc_uart_reset()
{
DAL_PRINT("phDal4Nfc_uart_reset");
return NFCSTATUS_FEATURE_NOT_SUPPORTED;
}
/**
* \ingroup grp_nfc_dal
*
* \brief DAL deferred callback function
* Generic handler function called by a client thread when reading a message from the queue.
* Will function will directly call the client function (same context). See phDal4Nfc_DeferredCall
*
* \param[in] params Parameter that will be passed to the client function.
*
*/
void phDal4Nfc_DeferredCb (void *params)
{
int* pParam=NULL;
int i;
phNfc_sTransactionInfo_t TransactionInfo;
pParam=(int*)params;
switch(*pParam)
{
case PHDAL4NFC_READ_MESSAGE:
DAL_PRINT(" Dal deferred read called \n");
TransactionInfo.buffer=gReadWriteContext.pReadBuffer;
TransactionInfo.length=(uint16_t)gReadWriteContext.nNbOfBytesRead;
TransactionInfo.status=NFCSTATUS_SUCCESS;
gReadWriteContext.nReadBusy = FALSE;
/* Reset flag so that another opertion can be issued.*/
gReadWriteContext.nWaitingOnRead = FALSE;
if ((NULL != pgDalContext) && (NULL != pgDalContext->cb_if.receive_complete))
{
pgDalContext->cb_if.receive_complete(pgDalContext->cb_if.pif_ctxt,
pgDalHwContext,&TransactionInfo);
}
break;
case PHDAL4NFC_WRITE_MESSAGE:
DAL_PRINT(" Dal deferred write called \n");
#ifdef LOW_LEVEL_TRACES
phOsalNfc_PrintData("Send buffer", (uint16_t)gReadWriteContext.nNbOfBytesToWrite, gReadWriteContext.pWriteBuffer);
#endif
/* DAL_DEBUG("dalMsg->transactInfo.length : %d\n", dalMsg->transactInfo.length); */
/* Make a Physical WRITE */
/* NOTE: need to usleep(3000) here if the write is for SWP */
usleep(500); /* NXP advise 500us sleep required between I2C writes */
gReadWriteContext.nNbOfBytesWritten = gLinkFunc.write(gReadWriteContext.pWriteBuffer, gReadWriteContext.nNbOfBytesToWrite);
if (gReadWriteContext.nNbOfBytesWritten != gReadWriteContext.nNbOfBytesToWrite)
{
/* controller may be in standby. do it again! */
usleep(10000); /* wait 10 ms */
gReadWriteContext.nNbOfBytesWritten = gLinkFunc.write(gReadWriteContext.pWriteBuffer, gReadWriteContext.nNbOfBytesToWrite);
}
if (gReadWriteContext.nNbOfBytesWritten != gReadWriteContext.nNbOfBytesToWrite)
{
/* Report write failure or timeout */
DAL_PRINT(" Physical Write Error !!! \n");
TransactionInfo.length=(uint16_t)gReadWriteContext.nNbOfBytesWritten;
TransactionInfo.status = PHNFCSTVAL(CID_NFC_DAL, NFCSTATUS_BOARD_COMMUNICATION_ERROR);
}
else
{
DAL_PRINT(" Physical Write Success \n");
TransactionInfo.length=(uint16_t)gReadWriteContext.nNbOfBytesWritten;
TransactionInfo.status=NFCSTATUS_SUCCESS;
DAL_PRINT("WriteBuff[]={ ");
for (i = 0; i < gReadWriteContext.nNbOfBytesWritten; i++)
{
DAL_DEBUG("0x%x ", gReadWriteContext.pWriteBuffer[i]);
}
DAL_PRINT("}\n");
// Free TempWriteBuffer
if(gReadWriteContext.pTempWriteBuffer != NULL)
{
free(gReadWriteContext.pTempWriteBuffer);
}
}
/* Reset Write context */
gReadWriteContext.nWriteBusy = FALSE;
gReadWriteContext.nWaitingOnWrite = FALSE;
/* call LLC callback */
if ((NULL != pgDalContext) && (NULL != pgDalContext->cb_if.send_complete))
{
pgDalContext->cb_if.send_complete(pgDalContext->cb_if.pif_ctxt,
pgDalHwContext,&TransactionInfo);
}
break;
default:
break;
}
}
int phDal4Nfc_ReaderThread(void * pArg)
{
char retvalue;
NFCSTATUS result = NFCSTATUS_SUCCESS;
uint8_t retry_cnt=0;
void * memsetRet;
static int MsgType= PHDAL4NFC_READ_MESSAGE;
int * pmsgType=&MsgType;
phDal4Nfc_Message_t sMsg;
phOsalNfc_Message_t OsalMsg ;
int i;
int i2c_error_count;
pthread_setname_np(pthread_self(), "reader");
/* Create the overlapped event. Must be closed before exiting
to avoid a handle leak. This event is used READ API and the Reader thread*/
DAL_PRINT("RX Thread \n");
DAL_DEBUG("\nRX Thread nReadThreadAlive = %d",gReadWriteContext.nReadThreadAlive);
DAL_DEBUG("\nRX Thread nWaitingOnRead = %d",gReadWriteContext.nWaitingOnRead);
while(gReadWriteContext.nReadThreadAlive) /* Thread Loop */
{
/* Check for the read request from user */
DAL_PRINT("RX Thread Sem Lock\n");
sem_wait(&nfc_read_sem);
DAL_PRINT("RX Thread Sem UnLock\n");
if (!gReadWriteContext.nReadThreadAlive)
{
/* got the signal that we should exit. NOTE: we don't
attempt to read below, since the read may block */
break;
}
/* Issue read operation.*/
i2c_error_count = 0;
retry:
gReadWriteContext.nNbOfBytesRead=0;
DAL_DEBUG("RX Thread *New *** *****Request Length = %d",gReadWriteContext.nNbOfBytesToRead);
memsetRet=memset(gReadWriteContext.pReadBuffer,0,gReadWriteContext.nNbOfBytesToRead);
/* Wait for IRQ !!! */
gReadWriteContext.nNbOfBytesRead = gLinkFunc.read(gReadWriteContext.pReadBuffer, gReadWriteContext.nNbOfBytesToRead);
/* TODO: Remove this hack
* Reading the value 0x57 indicates a HW I2C error at I2C address 0x57
* (pn544). There should not be false positives because a read of length 1
* must be a HCI length read, and a length of 0x57 is impossible (max is 33).
*/
if(gReadWriteContext.nNbOfBytesToRead == 1 && gReadWriteContext.pReadBuffer[0] == 0x57)
{
i2c_error_count++;
DAL_DEBUG("RX Thread Read 0x57 %d times\n", i2c_error_count);
if (i2c_error_count < 5) {
usleep(2000);
goto retry;
}
DAL_PRINT("RX Thread NOTHING TO READ, RECOVER");
phOsalNfc_RaiseException(phOsalNfc_e_UnrecovFirmwareErr,1);
}
else
{
i2c_error_count = 0;
#ifdef LOW_LEVEL_TRACES
phOsalNfc_PrintData("Received buffer", (uint16_t)gReadWriteContext.nNbOfBytesRead, gReadWriteContext.pReadBuffer);
#endif
DAL_DEBUG("RX Thread Read ok. nbToRead=%d\n", gReadWriteContext.nNbOfBytesToRead);
DAL_DEBUG("RX Thread NbReallyRead=%d\n", gReadWriteContext.nNbOfBytesRead);
DAL_PRINT("RX Thread ReadBuff[]={ ");
for (i = 0; i < gReadWriteContext.nNbOfBytesRead; i++)
{
DAL_DEBUG("RX Thread 0x%x ", gReadWriteContext.pReadBuffer[i]);
}
DAL_PRINT("RX Thread }\n");
/* read completed immediately */
sMsg.eMsgType= PHDAL4NFC_READ_MESSAGE;
/* Update the state */
phDal4Nfc_FillMsg(&sMsg,&OsalMsg);
phDal4Nfc_DeferredCall((pphDal4Nfc_DeferFuncPointer_t)phDal4Nfc_DeferredCb,(void *)pmsgType);
memsetRet=memset(&sMsg,0,sizeof(phDal4Nfc_Message_t));
memsetRet=memset(&OsalMsg,0,sizeof(phOsalNfc_Message_t));
}
} /* End of thread Loop*/
DAL_PRINT("RX Thread exiting");
return TRUE;
}
/*-----------------------------------------------------------------------------
FUNCTION: phDal4Nfc_Config
PURPOSE: Configure the serial port.
-----------------------------------------------------------------------------*/
NFCSTATUS phDal4Nfc_Config(pphDal4Nfc_sConfig_t config,void **phwref)
{
NFCSTATUS retstatus = NFCSTATUS_SUCCESS;
DAL_PRINT("phDal4Nfc_Config");
if ((config == NULL) || (phwref == NULL) || (config->nClientId == -1))
return NFCSTATUS_INVALID_PARAMETER;
/* Register the link callbacks */
memset(&gLinkFunc, 0, sizeof(phDal4Nfc_link_cbk_interface_t));
switch(config->nLinkType)
{
case ENUM_DAL_LINK_TYPE_COM1:
case ENUM_DAL_LINK_TYPE_COM2:
case ENUM_DAL_LINK_TYPE_COM3:
case ENUM_DAL_LINK_TYPE_COM4:
case ENUM_DAL_LINK_TYPE_COM5:
case ENUM_DAL_LINK_TYPE_USB:
{
DAL_PRINT("UART link Config");
/* Uart link interface */
gLinkFunc.init = phDal4Nfc_uart_initialize;
gLinkFunc.open_from_handle = phDal4Nfc_uart_set_open_from_handle;
gLinkFunc.is_opened = phDal4Nfc_uart_is_opened;
gLinkFunc.flush = phDal4Nfc_uart_flush;
gLinkFunc.close = phDal4Nfc_uart_close;
gLinkFunc.open_and_configure = phDal4Nfc_uart_open_and_configure;
gLinkFunc.read = phDal4Nfc_uart_read;
gLinkFunc.write = phDal4Nfc_uart_write;
gLinkFunc.download = phDal4Nfc_uart_download;
gLinkFunc.reset = phDal4Nfc_uart_reset;
}
break;
case ENUM_DAL_LINK_TYPE_I2C:
{
DAL_PRINT("I2C link Config");
/* i2c link interface */
gLinkFunc.init = phDal4Nfc_i2c_initialize;
gLinkFunc.open_from_handle = phDal4Nfc_i2c_set_open_from_handle;
gLinkFunc.is_opened = phDal4Nfc_i2c_is_opened;
gLinkFunc.flush = phDal4Nfc_i2c_flush;
gLinkFunc.close = phDal4Nfc_i2c_close;
gLinkFunc.open_and_configure = phDal4Nfc_i2c_open_and_configure;
gLinkFunc.read = phDal4Nfc_i2c_read;
gLinkFunc.write = phDal4Nfc_i2c_write;
gLinkFunc.reset = phDal4Nfc_i2c_reset;
break;
}
default:
{
/* Shound not happen : Bad parameter */
return PHNFCSTVAL(CID_NFC_DAL, NFCSTATUS_INVALID_PARAMETER);
}
}
gLinkFunc.init(); /* So that link interface can initialize its internal state */
retstatus = gLinkFunc.open_and_configure(config, phwref);
if (retstatus != NFCSTATUS_SUCCESS)
return retstatus;
/* Iniatilize the DAL context */
(void)memset(&gDalContext,0,sizeof(phDal4Nfc_SContext_t));
pgDalContext = &gDalContext;
/* Reset the Reader Thread values to NULL */
memset((void *)&gReadWriteContext,0,sizeof(gReadWriteContext));
gReadWriteContext.nReadThreadAlive = TRUE;
gReadWriteContext.nWriteBusy = FALSE;
gReadWriteContext.nWaitingOnWrite = FALSE;
/* Prepare the message queue for the defered calls */
#ifdef USE_MQ_MESSAGE_QUEUE
nDeferedCallMessageQueueId = mq_open(MQ_NAME_IDENTIFIER, O_CREAT|O_RDWR, 0666, &MQ_QUEUE_ATTRIBUTES);
#else
nDeferedCallMessageQueueId = config->nClientId;
#endif
/* Start Read and Write Threads */
if(NFCSTATUS_SUCCESS != phDal4Nfc_StartThreads())
{
return PHNFCSTVAL(CID_NFC_DAL, NFCSTATUS_FAILED);
}
gDalContext.hw_valid = TRUE;
phDal4Nfc_Reset(1);
phDal4Nfc_Reset(0);
phDal4Nfc_Reset(1);
return NFCSTATUS_SUCCESS;
}
NFCSTATUS phDal4Nfc_ReadWait(void *pContext, void *pHwRef,uint8_t *pBuffer, uint16_t length)
{
/* not used */
DAL_PRINT("phDal4Nfc_ReadWait");
return 0;
}
/*-----------------------------------------------------------------------------
FUNCTION: phDal4Nfc_Config
PURPOSE: Configure the serial port.
-----------------------------------------------------------------------------*/
NFCSTATUS phDal4Nfc_Config(pphDal4Nfc_sConfig_t config,void **phwref)
{
NFCSTATUS retstatus = NFCSTATUS_SUCCESS;
const hw_module_t* hw_module;
nfc_pn544_device_t* pn544_dev;
uint8_t num_eeprom_settings;
uint8_t* eeprom_settings;
int ret;
/* Retrieve the hw module from the Android NFC HAL */
ret = hw_get_module(NFC_HARDWARE_MODULE_ID, &hw_module);
if (ret) {
ALOGE("hw_get_module() failed");
return NFCSTATUS_FAILED;
}
ret = nfc_pn544_open(hw_module, &pn544_dev);
if (ret) {
ALOGE("Could not open pn544 hw_module");
return NFCSTATUS_FAILED;
}
config->deviceNode = pn544_dev->device_node;
if (config->deviceNode == NULL) {
ALOGE("deviceNode NULL");
return NFCSTATUS_FAILED;
}
DAL_PRINT("phDal4Nfc_Config");
if ((config == NULL) || (phwref == NULL))
return NFCSTATUS_INVALID_PARAMETER;
/* Register the link callbacks */
memset(&gLinkFunc, 0, sizeof(phDal4Nfc_link_cbk_interface_t));
switch(pn544_dev->linktype)
{
case PN544_LINK_TYPE_UART:
case PN544_LINK_TYPE_USB:
{
DAL_PRINT("UART link Config");
/* Uart link interface */
gLinkFunc.init = phDal4Nfc_uart_initialize;
gLinkFunc.open_from_handle = phDal4Nfc_uart_set_open_from_handle;
gLinkFunc.is_opened = phDal4Nfc_uart_is_opened;
gLinkFunc.flush = phDal4Nfc_uart_flush;
gLinkFunc.close = phDal4Nfc_uart_close;
gLinkFunc.open_and_configure = phDal4Nfc_uart_open_and_configure;
gLinkFunc.read = phDal4Nfc_uart_read;
gLinkFunc.write = phDal4Nfc_uart_write;
gLinkFunc.reset = phDal4Nfc_uart_reset;
}
break;
case PN544_LINK_TYPE_I2C:
{
DAL_PRINT("I2C link Config");
/* i2c link interface */
gLinkFunc.init = phDal4Nfc_i2c_initialize;
gLinkFunc.open_from_handle = phDal4Nfc_i2c_set_open_from_handle;
gLinkFunc.is_opened = phDal4Nfc_i2c_is_opened;
gLinkFunc.flush = phDal4Nfc_i2c_flush;
gLinkFunc.close = phDal4Nfc_i2c_close;
gLinkFunc.open_and_configure = phDal4Nfc_i2c_open_and_configure;
gLinkFunc.read = phDal4Nfc_i2c_read;
gLinkFunc.write = phDal4Nfc_i2c_write;
gLinkFunc.reset = phDal4Nfc_i2c_reset;
break;
}
default:
{
/* Shound not happen : Bad parameter */
return PHNFCSTVAL(CID_NFC_DAL, NFCSTATUS_INVALID_PARAMETER);
}
}
gLinkFunc.init(); /* So that link interface can initialize its internal state */
retstatus = gLinkFunc.open_and_configure(config, phwref);
if (retstatus != NFCSTATUS_SUCCESS)
return retstatus;
/* Iniatilize the DAL context */
(void)memset(&gDalContext,0,sizeof(phDal4Nfc_SContext_t));
pgDalContext = &gDalContext;
/* Reset the Reader Thread values to NULL */
memset((void *)&gReadWriteContext,0,sizeof(gReadWriteContext));
gReadWriteContext.nReadThreadAlive = TRUE;
gReadWriteContext.nWriteBusy = FALSE;
gReadWriteContext.nWaitingOnWrite = FALSE;
/* Prepare the message queue for the defered calls */
#ifdef USE_MQ_MESSAGE_QUEUE
nDeferedCallMessageQueueId = mq_open(MQ_NAME_IDENTIFIER, O_CREAT|O_RDWR, 0666, &MQ_QUEUE_ATTRIBUTES);
#else
nDeferedCallMessageQueueId = config->nClientId;
#endif
gDalContext.pDev = pn544_dev;
/* Start Read and Write Threads */
if(NFCSTATUS_SUCCESS != phDal4Nfc_StartThreads())
{
return PHNFCSTVAL(CID_NFC_DAL, NFCSTATUS_FAILED);
}
gDalContext.hw_valid = TRUE;
phDal4Nfc_Reset(1);
phDal4Nfc_Reset(0);
phDal4Nfc_Reset(1);
return NFCSTATUS_SUCCESS;
}
/*-----------------------------------------------------------------------------
FUNCTION: phDal4Nfc_uart_read
PURPOSE: Reads nNbBytesToRead bytes and writes them in pBuffer.
Returns the number of bytes really read or -1 in case of error.
-----------------------------------------------------------------------------*/
int phDal4Nfc_uart_read(uint8_t * pBuffer, int nNbBytesToRead)
{
int ret;
int numRead = 0;
struct timeval tv;
struct timeval *ptv;
struct timespec timeout;
fd_set rfds;
DAL_ASSERT_STR(gComPortContext.nOpened == 1, "read called but not opened!");
DAL_DEBUG("_uart_read() called to read %d bytes", nNbBytesToRead);
/* Samsung modify for TIZEN */
#if 0
// read_property();
// Read timeout:
// FW mode: 10s timeout
// 1 byte read: steady-state LLC length read, allowed to block forever
// >1 byte read: LLC payload, 100ms timeout (before pn544 re-transmit)
if (nNbBytesToRead > 1 && !libnfc_firmware_mode) {
clock_gettime(CLOCK_MONOTONIC, &timeout);
timeout.tv_nsec += 100000000;
if (timeout.tv_nsec > 1000000000) {
timeout.tv_sec++;
timeout.tv_nsec -= 1000000000;
}
ptv = &tv;
} else if (libnfc_firmware_mode) {
clock_gettime(CLOCK_MONOTONIC, &timeout);
timeout.tv_sec += 10;
ptv = &tv;
} else {
ptv = NULL;
}
while (numRead < nNbBytesToRead) {
FD_ZERO(&rfds);
FD_SET(gComPortContext.nHandle, &rfds);
if (ptv) {
tv = timeval_remaining(timeout);
ptv = &tv;
}
ret = select(gComPortContext.nHandle + 1, &rfds, NULL, NULL, ptv);
if (ret < 0) {
DAL_DEBUG("select() errno=%d", errno);
if (errno == EINTR || errno == EAGAIN) {
continue;
}
return -1;
} else if (ret == 0) {
LOGW("timeout!");
break; // return partial response
}
ret = read(gComPortContext.nHandle, pBuffer + numRead, nNbBytesToRead - numRead);
if (ret > 0) {
ret = apply_errors(pBuffer + numRead, ret);
DAL_DEBUG("read %d bytes", ret);
numRead += ret;
} else if (ret == 0) {
DAL_PRINT("_uart_read() EOF");
return 0;
} else {
DAL_DEBUG("_uart_read() errno=%d", errno);
if (errno == EINTR || errno == EAGAIN) {
continue;
}
return -1;
}
}
#endif
return numRead;
}
/*-----------------------------------------------------------------------------
FUNCTION: phDal4Nfc_uart_read
PURPOSE: Reads nNbBytesToRead bytes and writes them in pBuffer.
Returns the number of bytes really read or -1 in case of error.
-----------------------------------------------------------------------------*/
int phDal4Nfc_uart_read(uint8_t * pBuffer, int nNbBytesToRead)
{
int ret;
int numRead = 0;
struct timeval tv;
struct timeval *ptv;
struct timespec timeout;
fd_set rfds;
#ifdef SWISSKNIFEVERSION
struct timespec time,time2;
clock_gettime(CLOCK_MONOTONIC, &time);
#endif
DAL_ASSERT_STR(gComPortContext.nOpened == 1, "read called but not opened!");
DAL_DEBUG("_uart_read() called to read %d bytes", nNbBytesToRead);
read_property();
// Read timeout:
// FW mode: 10s timeout
// 1 byte read: steady-state LLC length read, allowed to block forever
// >1 byte read: LLC payload, 100ms timeout (before pn544 re-transmit)
if (nNbBytesToRead > 1 && !libnfc_firmware_mode) {
clock_gettime(CLOCK_MONOTONIC, &timeout);
timeout.tv_nsec += 100000000;
if (timeout.tv_nsec > 1000000000) {
timeout.tv_sec++;
timeout.tv_nsec -= 1000000000;
}
ptv = &tv;
} else if (libnfc_firmware_mode) {
clock_gettime(CLOCK_MONOTONIC, &timeout);
timeout.tv_sec += 10;
ptv = &tv;
} else {
ptv = NULL;
}
while (numRead < nNbBytesToRead) {
FD_ZERO(&rfds);
FD_SET(gComPortContext.nHandle, &rfds);
if (ptv) {
tv = timeval_remaining(timeout);
ptv = &tv;
}
ret = select(gComPortContext.nHandle + 1, &rfds, NULL, NULL, ptv);
if (ret < 0) {
DAL_DEBUG("select() errno=%d", errno);
if (errno == EINTR || errno == EAGAIN) {
continue;
}
return -1;
} else if (ret == 0) {
ALOGW("timeout!");
break; // return partial response
}
ret = read(gComPortContext.nHandle, pBuffer + numRead, nNbBytesToRead - numRead);
if (ret > 0) {
// ret = apply_errors(pBuffer + numRead, ret);
DAL_DEBUG("read %d bytes", ret);
numRead += ret;
} else if (ret == 0) {
DAL_PRINT("_uart_read() EOF");
return 0;
} else {
DAL_DEBUG("_uart_read() errno=%d", errno);
if (errno == EINTR || errno == EAGAIN) {
continue;
}
return -1;
}
}
#ifdef SWISSKNIFEVERSION
clock_gettime(CLOCK_MONOTONIC, &time2);
#ifdef LOGSWISSKNIFE
SwissKnife_Log(pBuffer,nNbBytesToRead,"Receiving message:");
#endif
if(rapidBitExchange && receivedMessages < 32) {
if(nNbBytesToRead == 1) {
if(pBuffer[0] == 0x03) {
msg3[receivedMessages] = (time2.tv_sec*1000000000)+time2.tv_nsec;
}
else if (pBuffer[0] == 0x07) {
msgsize[receivedMessages] = (time2.tv_sec*1000000000)+time2.tv_nsec;
}
} else if(nNbBytesToRead == 7) {
data[receivedMessages] = (time2.tv_sec*1000000000)+time2.tv_nsec;
}
}
#endif
return numRead;
}
