/*
* @brief Sets the PAN for any transceiver device
*
* @param t The transceiver device
* @param pan The PAN to be set
*
* @return The PAN AFTER calling the set command, -1 on error
*/
static int32_t set_pan(transceiver_type_t t, void *pan)
{
uint16_t c = *((uint16_t *) pan);
switch (t) {
#ifdef MODULE_CC2420
case TRANSCEIVER_CC2420:
return cc2420_set_pan(c);
#endif
#ifdef MODULE_NATIVENET
case TRANSCEIVER_NATIVE:
return nativenet_set_pan(c);
#endif
#ifdef MODULE_AT86RF231
case TRANSCEIVER_AT86RF231:
return at86rf231_set_pan(c);
#endif
#ifdef MODULE_MC1322X
case TRANSCEIVER_MC1322X:
return maca_set_pan(c);
#endif
default:
/* get rid of compiler warning about unused variable */
(void) c;
return -1;
}
}
void cc2420_init(int tpid)
{
uint16_t reg;
transceiver_pid = tpid;
cc2420_spi_init();
hwtimer_wait(CC2420_WAIT_TIME);
cc2420_reset();
cc2420_strobe(CC2420_STROBE_XOSCON); //enable crystal
while((cc2420_strobe(NOBYTE) & 0x40) == 0); //wait for crystal to be stable
hwtimer_wait(CC2420_WAIT_TIME);
reg = cc2420_read_reg(CC2420_REG_MDMCTRL0);
reg |= CC2420_ADR_DECODE; //enable adr decode
reg |= CC2420_AUTOACK; //enable auto ack
reg |= CC2420_AUTOCRC; //enable auto crc
reg &= ~(CC2420_RES_FRM_MODE); //disable reserved frames
cc2420_write_reg(CC2420_REG_MDMCTRL0, reg);
/* Change default values as recomended in the data sheet, */
/* RX bandpass filter = 1.3uA. */
reg = cc2420_read_reg(CC2420_REG_RXCTRL1);
reg |= CC2420_RXBPF_LOCUR;
cc2420_write_reg(CC2420_REG_RXCTRL1, reg);
/* Set the FIFOP threshold to maximum. */
cc2420_write_reg(CC2420_REG_IOCFG0, 127);
/* Turn off "Security enable" (page 32). */
reg = cc2420_read_reg(CC2420_REG_SECCTRL0);
reg &= ~CC2420_RXFIFO_PROTECTION;
cc2420_write_reg(CC2420_REG_SECCTRL0, reg);
/* set output power to 0dbm */
cc2420_write_reg(CC2420_REG_TXCTRL, 0xA0FF);
cc2420_set_channel(CC2420_DEFAULT_CHANNR);
cc2420_set_pan(0x1111);
DEBUG("CC2420 initialized and set to channel %i and pan %i\n", radio_channel, radio_pan);
cc2420_init_interrupts();
cc2420_switch_to_rx();
}
int cc2420_init(cc2420_t *dev)
{
uint16_t reg;
uint8_t addr[8];
/* reset options and sequence number */
dev->netdev.seq = 0;
dev->netdev.flags = 0;
/* set default address, channel, PAN ID, and TX power */
luid_get(addr, sizeof(addr));
/* make sure we mark the address as non-multicast and not globally unique */
addr[0] &= ~(0x01);
addr[0] |= 0x02;
cc2420_set_addr_short(dev, &addr[6]);
cc2420_set_addr_long(dev, addr);
cc2420_set_pan(dev, CC2420_PANID_DEFAULT);
cc2420_set_chan(dev, CC2420_CHAN_DEFAULT);
cc2420_set_txpower(dev, CC2420_TXPOWER_DEFAULT);
/* set default options */
cc2420_set_option(dev, CC2420_OPT_AUTOACK, true);
cc2420_set_option(dev, CC2420_OPT_CSMA, true);
cc2420_set_option(dev, CC2420_OPT_TELL_TX_START, true);
cc2420_set_option(dev, CC2420_OPT_TELL_RX_END, true);
#ifdef MODULE_NETSTATS_L2
cc2420_set_option(dev, CC2420_OPT_TELL_RX_END, true);
#endif
/* set default protocol*/
#ifdef MODULE_GNRC_SIXLOWPAN
dev->netdev.proto = GNRC_NETTYPE_SIXLOWPAN;
#elif MODULE_GNRC
dev->netdev.proto = GNRC_NETTYPE_UNDEF;
#endif
/* change default RX bandpass filter to 1.3uA (as recommended) */
reg = cc2420_reg_read(dev, CC2420_REG_RXCTRL1);
reg |= CC2420_RXCTRL1_RXBPF_LOCUR;
cc2420_reg_write(dev, CC2420_REG_RXCTRL1, reg);
/* set the FIFOP threshold to maximum. */
cc2420_reg_write(dev, CC2420_REG_IOCFG0, CC2420_PKT_MAXLEN);
/* turn off "Security enable" (page 33). */
reg = cc2420_reg_read(dev, CC2420_REG_SECCTRL0);
reg &= ~CC2420_SECCTRL0_RXFIFO_PROT;
cc2420_reg_write(dev, CC2420_REG_SECCTRL0, reg);
/* set preamble length to 3 leading zero byte */
/* and turn on hardware CRC generation */
reg = cc2420_reg_read(dev, CC2420_REG_MDMCTRL0);
reg &= ~(CC2420_MDMCTRL0_PREAMBLE_M);
reg |= CC2420_MDMCTRL0_PREAMBLE_3B;
reg |= CC2420_MDMCTRL0_AUTOCRC;
cc2420_reg_write(dev, CC2420_REG_MDMCTRL0, reg);
/* go into RX state */
cc2420_set_state(dev, CC2420_GOTO_RX);
return 0;
}
static int _set(netdev_t *netdev, netopt_t opt, const void *val, size_t val_len)
{
if (netdev == NULL) {
return -ENODEV;
}
cc2420_t *dev = (cc2420_t *)netdev;
int ext = netdev_ieee802154_set(&dev->netdev, opt, val, val_len);
switch (opt) {
case NETOPT_ADDRESS:
assert(val_len == 2);
cc2420_set_addr_short(dev, val);
return 2;
case NETOPT_ADDRESS_LONG:
assert(val_len == 8);
cc2420_set_addr_long(dev, val);
return 8;
case NETOPT_NID:
assert(val_len == sizeof(uint16_t));
cc2420_set_pan(dev, to_u16(val));
return sizeof(uint16_t);
case NETOPT_CHANNEL:
assert(val_len == sizeof(uint16_t));
return cc2420_set_chan(dev, to_u16(val));
case NETOPT_TX_POWER:
assert(val_len == sizeof(int16_t));
cc2420_set_txpower(dev, to_i16(val));
return sizeof(int16_t);
case NETOPT_STATE:
assert(val_len == sizeof(netopt_state_t));
return cc2420_set_state(dev, *((netopt_state_t *)val));
case NETOPT_AUTOACK:
return cc2420_set_option(dev, CC2420_OPT_AUTOACK, to_bool(val));
case NETOPT_CSMA:
return cc2420_set_option(dev, CC2420_OPT_CSMA, to_bool(val));
case NETOPT_PRELOADING:
return cc2420_set_option(dev, CC2420_OPT_PRELOADING, to_bool(val));
case NETOPT_PROMISCUOUSMODE:
return cc2420_set_option(dev, CC2420_OPT_PROMISCUOUS, to_bool(val));
case NETOPT_RX_START_IRQ:
return cc2420_set_option(dev, CC2420_OPT_TELL_RX_START, to_bool(val));
case NETOPT_RX_END_IRQ:
return cc2420_set_option(dev, CC2420_OPT_TELL_RX_END, to_bool(val));
case NETOPT_TX_START_IRQ:
return cc2420_set_option(dev, CC2420_OPT_TELL_TX_START, to_bool(val));
case NETOPT_TX_END_IRQ:
return cc2420_set_option(dev, CC2420_OPT_TELL_TX_END, to_bool(val));
default:
return ext;
}
return 0;
}