/* * 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 * @author Hauke Petersen * * @} */ #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); } }