/*---------------------------------------------------------------------------*/
void
tr1001_init(void)
{
PT_INIT(&rxhandler_pt);
onoroff = OFF;
UCTL0 = CHAR; /* 8-bit character */
UTCTL0 = SSEL1; /* UCLK = SMCLK */
tr1001_set_speed(TR1001_19200);
ME1 |= UTXE0 + URXE0; /* Enable USART0 TXD/RXD */
/* Turn on receive interrupt. */
IE1 |= URXIE0;
timer_set(&rxtimer, CLOCK_SECOND / 4);
tr1001_on();
tr1001_set_txpower(100);
/* Reset reception state. */
rxclear();
process_start(&tr1001_process, NULL);
}
/*---------------------------------------------------------------------------*/
static int
tr1001_off(void)
{
if(onoroff == OFF) {
return 1;
}
onoroff = OFF;
rxoff();
rxclear();
ENERGEST_OFF(ENERGEST_TYPE_LISTEN);
return 1;
}
/*------------------------------------------------------------------------------*/
u8_t
tr1001_send_acked(void)
{
unsigned short tmplen, count;
struct tr1001_hdr *ackhdr = (struct tr1001_hdr *)rxbuf;
ek_clock_t start;
tr1001_send();
start = ek_clock();
count = 0;
P2OUT &= 0xFB;
/* Block while checking if a packet has arrived. */
while((volatile u8_t)rxstate != RXSTATE_FULL &&
(volatile u8_t)rxstate != RXSTATE_ERROR) {
/* Wait no more than one second. */
if((ek_clock_t)(ek_clock() - start) > (ek_clock_t)CLK_TCK) {
break;
}
}
P2OUT |= 0x04;
if(rxstate == RXSTATE_FULL) {
if(ackhdr->type == TR1001_TYPE_ACK &&
ackhdr->id == packet_id) {
beep();
rxclear();
return UIP_FW_OK;
}
}
if(rxstate == RXSTATE_ERROR) {
rxclear();
blink();
}
return UIP_FW_DROPPED;
}
/*------------------------------------------------------------------------------*/
unsigned short
tr1001_poll(void)
{
unsigned short tmplen;
if(rxstate == RXSTATE_FULL) {
if(rxlen > UIP_BUFSIZE - UIP_LLH_LEN) {
rxlen = UIP_BUFSIZE - UIP_LLH_LEN;
}
memcpy(&uip_buf[UIP_LLH_LEN], rxbuf + TR1001_HDRLEN, rxlen);
tmplen = rxlen;
rxclear();
return tmplen;
}
if(rxstate == RXSTATE_ERROR) {
blink();
rxclear();
}
return 0;
}
/*---------------------------------------------------------------------------*/
static int
tr1001_on(void)
{
if(onoroff == ON) {
return 1;
}
ENERGEST_ON(ENERGEST_TYPE_LISTEN);
onoroff = ON;
rxon();
rxclear();
return 1;
}
/*------------------------------------------------------------------------------*/
void
tr1001_init(void)
{
/* Turn on reception. */
rxon();
/* Reset reception state. */
rxclear();
UCTL0 = CHAR; /* 8-bit character */
UTCTL0 = SSEL1; /* UCLK = SMCLK */
#define TR1001_SPEED 19200
if(TR1001_SPEED == 19200) {
/* Set TR1001 to 19200 */
UBR00 = 0x80; /* 2,457MHz/19200 = 128 -> 0x80 */
UBR10 = 0x00; /* */
UMCTL0 = 0x00; /* no modulation */
} else if(TR1001_SPEED == 38400) {
/* Set TR1001 to 38400 */
UBR00 = 0x40; /* 2,457MHz/38400 = 64 -> 0x40 */
UBR10 = 0x00; /* */
UMCTL0 = 0x00; /* no modulation */
} else if(TR1001_SPEED == 57600) {
UBR00 = 0x2a; /* 2,457MHz/57600 = 42.7 -> 0x2A */
UBR10 = 0x00; /* */
UMCTL0 = 0x5b; /* */
} else if(TR1001_SPEED == 115200) {
UBR00 = 0x15; /* 2,457MHz/115200 = 21.4 -> 0x15 */
UBR10 = 0x00; /* */
UMCTL0 = 0x4a; /* */
}
#if 0
/* 19200 bps */
UBR00 = 0x80; /* 2,457MHz/19200 = 128 -> 0x80 */
UBR10 = 0x00; /* */
UMCTL0 = 0x00; /* no modulation */
#endif /* 0 */
ME1 |= UTXE0 + URXE0; /* Enable USART0 TXD/RXD */
/* Turn on receive interrupt. */
IE1 |= URXIE0;
}
