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RIOT/drivers/ng_at86rf2xx/ng_at86rf2xx_getset.c
Oleg Hahm a97ee2b0a4 at86rf231: disable SFD IRQ by default
2015-05-06 15:58:02 +02:00

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/*
* Copyright (C) 2015 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @ingroup drivers_ng_at86rf2xx
* @{
*
* @file
* @brief Getter and setter functions for the AT86RF2xx drivers
*
* @author Thomas Eichinger <thomas.eichinger@fu-berlin.de>
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
*
* @}
*/
#include "ng_at86rf2xx.h"
#include "ng_at86rf2xx_internal.h"
#include "ng_at86rf2xx_registers.h"
#include "periph/spi.h"
#define ENABLE_DEBUG (0)
#include "debug.h"
static const int16_t tx_pow_to_dbm[] = {3, 3, 2, 2, 1, 1, 0,
-1, -2, -3, -4, -5, -7, -9, -12, -17};
static const uint8_t dbm_to_tx_pow[] = {0x0f, 0x0f, 0x0f, 0x0e, 0x0e, 0x0e,
0x0e, 0x0d, 0x0d, 0x0c, 0x0c, 0x0b,
0x0b, 0x0a, 0x09, 0x08, 0x07, 0x06,
0x05, 0x03, 0x00};
uint16_t ng_at86rf2xx_get_addr_short(ng_at86rf2xx_t *dev)
{
return (dev->addr_short[0] << 8) | dev->addr_short[1];
}
void ng_at86rf2xx_set_addr_short(ng_at86rf2xx_t *dev, uint16_t addr)
{
dev->addr_short[0] = addr >> 8;
dev->addr_short[1] = addr & 0xff;
ng_at86rf2xx_reg_write(dev, NG_AT86RF2XX_REG__SHORT_ADDR_0,
dev->addr_short[0]);
ng_at86rf2xx_reg_write(dev, NG_AT86RF2XX_REG__SHORT_ADDR_1,
dev->addr_short[1]);
}
uint64_t ng_at86rf2xx_get_addr_long(ng_at86rf2xx_t *dev)
{
uint64_t addr;
uint8_t *ap = (uint8_t *)(&addr);
for (int i = 0; i < 8; i++) {
ap[i] = dev->addr_long[7 - i];
}
return addr;
}
void ng_at86rf2xx_set_addr_long(ng_at86rf2xx_t *dev, uint64_t addr)
{
for (int i = 0; i < 8; i++) {
dev->addr_long[i] = (addr >> ((7 - i) * 8));
ng_at86rf2xx_reg_write(dev, (NG_AT86RF2XX_REG__IEEE_ADDR_0 + i),
dev->addr_long[i]);
}
}
uint8_t ng_at86rf2xx_get_chan(ng_at86rf2xx_t *dev)
{
uint8_t res = ng_at86rf2xx_reg_read(dev, NG_AT86RF2XX_REG__PHY_CC_CCA);
return (res & NG_AT86RF2XX_PHY_CC_CCA_MASK__CHANNEL);
}
void ng_at86rf2xx_set_chan(ng_at86rf2xx_t *dev, uint8_t channel)
{
uint8_t tmp;
if (channel < NG_AT86RF2XX_MIN_CHANNEL
|| channel > NG_AT86RF2XX_MAX_CHANNEL) {
return;
}
tmp = ng_at86rf2xx_reg_read(dev, NG_AT86RF2XX_REG__PHY_CC_CCA);
tmp &= ~(NG_AT86RF2XX_PHY_CC_CCA_MASK__CHANNEL);
tmp |= (channel & NG_AT86RF2XX_PHY_CC_CCA_MASK__CHANNEL);
ng_at86rf2xx_reg_write(dev, NG_AT86RF2XX_REG__PHY_CC_CCA, tmp);
}
uint16_t ng_at86rf2xx_get_pan(ng_at86rf2xx_t *dev)
{
return dev->pan;
}
void ng_at86rf2xx_set_pan(ng_at86rf2xx_t *dev, uint16_t pan)
{
dev->pan = pan;
DEBUG("pan0: %u, pan1: %u\n", (uint8_t)pan, pan >> 8);
ng_at86rf2xx_reg_write(dev, NG_AT86RF2XX_REG__PAN_ID_0, (uint8_t)pan);
ng_at86rf2xx_reg_write(dev, NG_AT86RF2XX_REG__PAN_ID_1, (pan >> 8));
}
int16_t ng_at86rf2xx_get_txpower(ng_at86rf2xx_t *dev)
{
uint8_t txpower = ng_at86rf2xx_reg_read(dev, NG_AT86RF2XX_REG__PHY_TX_PWR)
& NG_AT86RF2XX_PHY_TX_PWR_MASK__TX_PWR;
return tx_pow_to_dbm[txpower];
}
void ng_at86rf2xx_set_txpower(ng_at86rf2xx_t *dev, int16_t txpower)
{
txpower += 17;
if (txpower < 0) {
txpower = 0;
} else if (txpower > 20) {
txpower = 20;
}
ng_at86rf2xx_reg_write(dev, NG_AT86RF2XX_REG__PHY_TX_PWR,
dbm_to_tx_pow[txpower]);
}
void ng_at86rf2xx_set_option(ng_at86rf2xx_t *dev, uint16_t option, bool state)
{
uint8_t tmp;
DEBUG("set option %i to %i\n", option, state);
/* set option field */
if (state) {
dev->options |= option;
/* trigger option specific actions */
switch (option) {
case NG_AT86RF2XX_OPT_CSMA:
DEBUG("[ng_at86rf2xx] opt: enabling CSMA mode\n");
/* TODO: en/disable csma */
break;
case NG_AT86RF2XX_OPT_PROMISCUOUS:
DEBUG("[ng_at86rf2xx] opt: enabling PROMISCUOUS mode\n");
/* disable auto ACKs in promiscuous mode */
tmp = ng_at86rf2xx_reg_read(dev, NG_AT86RF2XX_REG__CSMA_SEED_1);
tmp |= NG_AT86RF2XX_CSMA_SEED_1__AACK_DIS_ACK;
ng_at86rf2xx_reg_write(dev, NG_AT86RF2XX_REG__CSMA_SEED_1, tmp);
/* enable promiscuous mode */
tmp = ng_at86rf2xx_reg_read(dev, NG_AT86RF2XX_REG__XAH_CTRL_1);
tmp |= NG_AT86RF2XX_XAH_CTRL_1__AACK_PROM_MODE;
ng_at86rf2xx_reg_write(dev, NG_AT86RF2XX_REG__XAH_CTRL_1, tmp);
break;
case NG_AT86RF2XX_OPT_AUTOACK:
DEBUG("[ng_at86rf2xx] opt: enabling auto ACKs\n");
tmp = ng_at86rf2xx_reg_read(dev, NG_AT86RF2XX_REG__CSMA_SEED_1);
tmp &= ~(NG_AT86RF2XX_CSMA_SEED_1__AACK_DIS_ACK);
ng_at86rf2xx_reg_write(dev, NG_AT86RF2XX_REG__CSMA_SEED_1, tmp);
break;
case NG_AT86RF2XX_OPT_TELL_RX_START:
DEBUG("[ng_at86rf2xx] opt: enabling SFD IRQ\n");
tmp = ng_at86rf2xx_reg_read(dev, NG_AT86RF2XX_REG__IRQ_MASK);
tmp |= NG_AT86RF2XX_IRQ_STATUS_MASK__RX_START;
ng_at86rf2xx_reg_write(dev, NG_AT86RF2XX_REG__IRQ_MASK, tmp);
break;
default:
/* do nothing */
break;
}
}
else {
dev->options &= ~(option);
/* trigger option specific actions */
switch (option) {
case NG_AT86RF2XX_OPT_CSMA:
/* TODO: en/disable csma */
break;
case NG_AT86RF2XX_OPT_PROMISCUOUS:
/* disable promiscuous mode */
tmp = ng_at86rf2xx_reg_read(dev, NG_AT86RF2XX_REG__XAH_CTRL_1);
tmp &= ~(NG_AT86RF2XX_XAH_CTRL_1__AACK_PROM_MODE);
ng_at86rf2xx_reg_write(dev, NG_AT86RF2XX_REG__XAH_CTRL_1, tmp);
/* re-enable AUTOACK only if the option is set */
if (dev->options & NG_AT86RF2XX_OPT_AUTOACK) {
tmp = ng_at86rf2xx_reg_read(dev,
NG_AT86RF2XX_REG__CSMA_SEED_1);
tmp &= ~(NG_AT86RF2XX_CSMA_SEED_1__AACK_DIS_ACK);
ng_at86rf2xx_reg_write(dev, NG_AT86RF2XX_REG__CSMA_SEED_1,
tmp);
}
break;
case NG_AT86RF2XX_OPT_AUTOACK:
tmp = ng_at86rf2xx_reg_read(dev, NG_AT86RF2XX_REG__CSMA_SEED_1);
tmp |= NG_AT86RF2XX_CSMA_SEED_1__AACK_DIS_ACK;
ng_at86rf2xx_reg_write(dev, NG_AT86RF2XX_REG__CSMA_SEED_1, tmp);
break;
case NG_AT86RF2XX_OPT_TELL_RX_START:
DEBUG("[ng_at86rf2xx] opt: disabling SFD IRQ\n");
tmp = ng_at86rf2xx_reg_read(dev, NG_AT86RF2XX_REG__IRQ_MASK);
tmp &= ~NG_AT86RF2XX_IRQ_STATUS_MASK__RX_START;
ng_at86rf2xx_reg_write(dev, NG_AT86RF2XX_REG__IRQ_MASK, tmp);
break;
default:
/* do nothing */
break;
}
}
}
uint8_t ng_at86rf2xx_get_state(ng_at86rf2xx_t *dev)
{
uint8_t status = ng_at86rf2xx_get_status(dev);
return (status & 0x1f);
}
static inline void _set_state(ng_at86rf2xx_t *dev, uint8_t state)
{
ng_at86rf2xx_reg_write(dev, NG_AT86RF2XX_REG__TRX_STATE, state);
while (ng_at86rf2xx_get_state(dev) != state);
}
void ng_at86rf2xx_set_state(ng_at86rf2xx_t *dev, uint8_t state)
{
uint8_t old_state = ng_at86rf2xx_get_state(dev);
if (state == old_state) {
return;
}
/* make sure there is no ongoing transmission */
while (old_state == NG_AT86RF2XX_STATE_BUSY_RX_AACK ||
old_state == NG_AT86RF2XX_STATE_BUSY_TX_ARET) {
old_state = ng_at86rf2xx_get_state(dev);
}
/* check if we need to wake up from sleep mode */
if (old_state == NG_AT86RF2XX_STATE_SLEEP) {
DEBUG("at86rf2xx: waking up from sleep mode\n");
gpio_clear(dev->sleep_pin);
while (ng_at86rf2xx_get_state(dev) != NG_AT86RF2XX_STATE_TRX_OFF);
}
/* go to neutral TRX_OFF state */
_set_state(dev, NG_AT86RF2XX_STATE_TRX_OFF);
if (state == NG_AT86RF2XX_STATE_RX_AACK_ON ||
state == NG_AT86RF2XX_STATE_TX_ARET_ON) {
_set_state(dev, state);
} else if (state == NG_AT86RF2XX_STATE_SLEEP) {
gpio_set(dev->sleep_pin);
while (ng_at86rf2xx_get_state(dev) != NG_AT86RF2XX_STATE_SLEEP);
}
}
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