/****************************************************************************
*
* NAME: vUtils_Init
*
* DESCRIPTION:
* Initialises UART
*
* PARAMETERS: Name RW Usage
*
* RETURNS:
* void, never returns
*
****************************************************************************/
PUBLIC void vUtils_Init(void)
{
vAHI_UartEnable(UTILS_UART);
vAHI_UartReset(UTILS_UART, TRUE, TRUE);
vAHI_UartReset(UTILS_UART, FALSE, FALSE);
vAHI_UartSetClockDivisor(UTILS_UART, UTILS_UART_BAUD_RATE);
}
void uart0_init(unsigned long br)
{
vAHI_UartSetRTSCTS(E_AHI_UART_0, false);
vAHI_UartEnable(E_AHI_UART_0);
vAHI_UartReset(E_AHI_UART_0, true, true);
uart0_set_br(br);
vAHI_UartSetRTSCTS(E_AHI_UART_0, false);
vAHI_Uart0RegisterCallback(irq);
vAHI_UartSetInterrupt(E_AHI_UART_0, false, /* modem status */
false, /* rx line error status */
false, /* tx fifo empty */
true, /* rx data there */
E_AHI_UART_FIFO_LEVEL_1);
vAHI_UartSetRTSCTS(E_AHI_UART_0, false);
vAHI_UartReset(E_AHI_UART_0, false, false);
}
void
AppColdStart(void)
{
/* initialize unaligned access handler */
UNALIGNED_ACCESS = UNALIGNED_ACCESS_HANDLER;
/* initialize uart to 8N1 at 115200 baud, that gives a throughput og
* ~14.4 kb/s, maxmimum packet rate on Ieee802.15.4 is 248 packets/sec at
* 127 bytes payload + header, which allows to return about 50bytes on the
* uart per packet. */
vAHI_UartEnable(UART);
vAHI_UartReset(UART, true, true);
vAHI_UartReset(UART, false, false);
vAHI_UartSetControl(UART, E_AHI_UART_EVEN_PARITY,
E_AHI_UART_PARITY_DISABLE,
E_AHI_UART_WORD_LEN_8,
E_AHI_UART_1_STOP_BIT,
E_AHI_UART_RTS_HIGH);
vAHI_UartSetBaudrate(UART, BAUD);
vAHI_UartSetRTSCTS(UART, false);
vAHI_DioSetDirection(CTS, RTS);
vAHI_DioSetOutput(0x00, RTS);
/* run the main loop, wait for channel number, then start reception
* and packet delivery. Ack by sending "okay\n". */
while (1) {
static int started = MAC_ENUM_NO_DATA;
static char input[10];
static uint8_t i=0;
/* write one rxd packet to uart */
if (started==MAC_ENUM_SUCCESS) {
MAC_DcfmIndHdr_s *ind;
if (rxq_peektype() == MCPS) {
ind = rxq_peek();
if (ind->u8Type == MAC_MCPS_IND_DATA) {
MAC_McpsDcfmInd_s *s = ind;
uart_write(UART, (char*) &s->uParam.sIndData, sizeof(s->uParam.sIndData));
}
}
rxq_dequeue();
}
/* read from uart into buf */
while (i<sizeof(input) && DATAREADY(UART)) {
input[i] = u8AHI_UartReadData(UART);
if ((i+1)==sizeof(input)) { /* buffer overrun, discard input */
memset(input, '\0', i);
i = 0;
} else if (input[i]=='\n' || input[i]=='\r') { /* read as channel number */
int channel;
input[9] = '\0'; /* terminate string */
channel = atoi(input); /* convert string to num */
started = start_sniffer(channel);
if (started != MAC_ENUM_SUCCESS)
printf("not started, error code: 0x%x, see MAC_Enum_e\r\n", started);
else
printf("started on channel %d\r\n", channel);
memset(input, '\0', i);
i = 0;
} else
i++;
}
}
}
/****************************************************************************
*
* NAME: vUART_Init
*
* DESCRIPTION:
*
* PARAMETERS: Name RW Usage
* None.
*
* RETURNS:
* None.
*
* NOTES:
* None.
****************************************************************************/
PUBLIC bool_t vUART_Init(uint8 u8Uart, /**< Uart to open */
uint32 u32BaudRate, /**< Baud rate */
bool_t bEvenParity, /**< Even parity */
bool_t bEnableParity, /**< Enable parity */
uint8 u8WordLength, /**< Word length, one of:\n
E_AHI_UART_WORD_LEN_5\n
E_AHI_UART_WORD_LEN_6\n
E_AHI_UART_WORD_LEN_7\n
E_AHI_UART_WORD_LEN_8 */
bool_t bOneStopBit) /**< One stop bit */
{
uint16 u16Divisor; /* Baud rate divisor */
uint32 u32Remainder; /* Baud rate remainder */
/* Valid uart ? */
if (u8Uart < 2)
{
/* Calculate divisor for baud rate = 16MHz / (16 x baud rate) */
u16Divisor = (uint16)(16000000UL / (16UL * u32BaudRate));
/* Correct for rounding errors */
u32Remainder = (uint32)(16000000UL % (16UL * u32BaudRate));
if (u32Remainder >= ((16UL * u32BaudRate) / 2)) u16Divisor += 1;
/* Start with port unopened */
Uart_Opened[u8Uart]= FALSE;
vAHI_UartSetRTSCTS(u8Uart, FALSE);
/* Enable UART 0 */
vAHI_UartEnable(u8Uart);
vAHI_UartReset(u8Uart, TRUE, TRUE);
vAHI_UartReset(u8Uart, FALSE, FALSE);
Uart_Opened[u8Uart]= TRUE;
#if !UART_JENOS
{
/* Register function that will handle UART interrupts */
if (u8Uart == E_AHI_UART_0) vAHI_Uart0RegisterCallback(UART_vInterrupt);
if (u8Uart == E_AHI_UART_1) vAHI_Uart1RegisterCallback(UART_vInterrupt);
}
#endif
/* Set baud rate */
vAHI_UartSetBaudDivisor(u8Uart, u16Divisor);
/* Set control */
vAHI_UartSetControl(u8Uart, bEvenParity, bEnableParity, u8WordLength, bOneStopBit, FALSE);
/* Set UART interrupts */
vAHI_UartSetInterrupt(u8Uart,
FALSE, /* ModemStatus */
FALSE, /* RxLineStatus */
TRUE, /* TxFifoEmpty */
TRUE, /* RxData */
E_AHI_UART_FIFO_LEVEL_1);
return TRUE;
}
return FALSE;
}
