/* * Copyright (C) 2016 MUTEX NZ Ltd. * Copyright (C) 2015 Loci Controls Inc. * * 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 cpu_cc2538 * @{ * * @file * @brief Low-level radio driver for the CC2538 * * @author Aaron Sowry * @author Ian Martin */ #ifndef CC2538_RF_H #define CC2538_RF_H #include #include "net/ieee802154.h" #include "net/netdev.h" #include "net/netdev/ieee802154.h" #ifdef __cplusplus extern "C" { #endif #define CC2538_AUTOCRC_LEN (2) #define CC2538_RF_FIFO_SIZE (128) #define CC2538_PACKET_LENGTH_SIZE (1) #define CC2538_RF_MAX_DATA_LEN (CC2538_RF_FIFO_SIZE - CC2538_PACKET_LENGTH_SIZE) #define CC2538_EUI64_LOCATION_PRI (0x00280028) /**< Primary EUI-64 address location */ #define CC2538_EUI64_LOCATION_SEC (0x0027FFCC) /**< Secondary EUI-64 address location */ /* TODO: Move these to sys/include/net/ieee802154.h somehow */ /* IEEE 802.15.4 defined constants (2.4 GHz logical channels) */ #define IEEE802154_MIN_FREQ (2405) /**< Min. frequency (2405 MHz) */ #define IEEE802154_MAX_FREQ (2480) /**< Max. frequency (2480 MHz) */ #define IEEE802154_CHANNEL_SPACING (5) /**< Channel spacing in MHz */ #define IEEE802154_CHAN2FREQ(chan) ( IEEE802154_MIN_FREQ + ((chan) - IEEE802154_CHANNEL_MIN) * IEEE802154_CHANNEL_SPACING ) #define IEEE802154_FREQ2CHAN(freq) ( IEEE802154_CHANNEL_MIN + ((freq) - IEEE802154_MIN_FREQ) / IEEE802154_CHANNEL_SPACING ) /* /TODO */ #define CC2538_MIN_FREQ (2394) #define CC2538_MAX_FREQ (2507) #define CC2538_RF_POWER_DEFAULT (IEEE802154_DEFAULT_TXPOWER) /**< Default output power in dBm */ #define CC2538_RF_CHANNEL_DEFAULT (IEEE802154_DEFAULT_CHANNEL) #define CC2538_RF_PANID_DEFAULT (IEEE802154_DEFAULT_PANID) #define OUTPUT_POWER_MIN (-24) /**< Min output power in dBm */ #define OUTPUT_POWER_MAX (7) /**< Max output power in dBm */ #define NUM_POWER_LEVELS ( OUTPUT_POWER_MAX - OUTPUT_POWER_MIN + 1 ) #define CC2538_CORR_VAL_MIN (50U) #define CC2538_CORR_VAL_MAX (110U) #define CC2538_CORR_VAL_MASK (0x7F) #define CC2538_RSSI_OFFSET (-73) /**< Signal strength offset value */ #define CC2538_RF_SENSITIVITY (-97) /**< dBm typical, normal conditions */ #define RFCORE_ASSERT(expr) (void)( (expr) || RFCORE_ASSERT_failure(#expr, __FUNCTION__, __LINE__) ) #if DEVELHELP #define RFCORE_WAIT_UNTIL(expr) while (!(expr)) { \ DEBUG("RFCORE_WAIT_UNTIL(%s) at line %u in %s()\n", #expr, __LINE__, __FUNCTION__); \ thread_yield(); \ } #else #define RFCORE_WAIT_UNTIL(expr) while (!(expr)) thread_yield() #endif #define RFCORE_FLUSH_RECEIVE_FIFO() rfcore_strobe(ISFLUSHRX) #define ABS_DIFF(x, y) ( ((x) < (y))? ((y) - (x)) : ((x) - (y)) ) #define BOOLEAN(x) ( (x) != 0 ) #define NOT(x) ( (x) == 0 ) #define GET_BYTE(buffer, index) ( (unsigned char*)(buffer) )[index] #define BIT(n) ( 1 << (n) ) enum { FSM_STATE_IDLE = 0, FSM_STATE_RX_CALIBRATION = 2, FSM_STATE_TX_CALIBRATION = 32, }; /* * @brief RFCORE_XREG_RFERRM bits */ enum { STROBE_ERR = BIT(6), TXUNDERF = BIT(5), TXOVERF = BIT(4), RXUNDERF = BIT(3), RXOVERF = BIT(2), RXABO = BIT(1), NLOCK = BIT(0), }; /* * @brief RFCORE_XREG_FRMCTRL0 bits */ enum { ENERGY_SCAN = BIT(4), AUTOACK = BIT(5), AUTOCRC = BIT(6), APPEND_DATA_MODE = BIT(7), }; /* * @brief RFCORE_XREG_RFIRQM0 / RFCORE_XREG_RFIRQF0 bits */ enum { ACT_UNUSED = BIT(0), SFD = BIT(1), /**< Start of frame event */ FIFOP = BIT(2), SRC_MATCH_DONE = BIT(3), SRC_MATCH_FOUND = BIT(4), FRAME_ACCEPTED = BIT(5), RXPKTDONE = BIT(6), /**< End of frame event */ RXMASKZERO = BIT(7), }; /* Values for use with CCTEST_OBSSELx registers: */ #define OBSSEL_EN BIT(7) enum { rfc_obs_sig0 = 0, rfc_obs_sig1 = 1, rfc_obs_sig2 = 2, }; /* Values for RFCORE_XREG_RFC_OBS_CTRLx registers: */ enum { constant_value_0 = 0x00, constant_value_1 = 0x01, rfc_sniff_data = 0x08, rfc_sniff_clk = 0x09, rssi_valid = 0x0c, demod_cca = 0x0d, sampled_cca = 0x0e, sfd_sync = 0x0f, tx_active = 0x10, rx_active = 0x11, ffctrl_fifo = 0x12, ffctrl_fifop = 0x13, packet_done = 0x14, rfc_xor_rand_i_q = 0x16, rfc_rand_q = 0x17, rfc_rand_i = 0x18, lock_status = 0x19, pa_pd = 0x20, lna_pd = 0x2a, }; /** * @brief Device descriptor for CC2538 transceiver * * @extends netdev_ieee802154_t */ typedef struct { netdev_ieee802154_t netdev; /**< netdev parent struct */ uint8_t state; /**< current state of the radio */ } cc2538_rf_t; /** * @brief IRQ handler for RF events * */ void _irq_handler(void); /** * @brief Trigger a clear channel assessment * * @return True if channel is clear * @return False if channel is busy */ bool cc2538_channel_clear(void); /** * @brief Get the configured long address of the device * * @return The currently set (8-byte) long address */ uint64_t cc2538_get_addr_long(void); /** * @brief Get the configured short address of the device * * @return The currently set (2-byte) short address */ uint16_t cc2538_get_addr_short(void); /** * @brief Get the primary (burned-in) EUI-64 of the device * * @return The primary EUI-64 of the device */ uint64_t cc2538_get_eui64_primary(void); /** * @brief Get the configured channel number of the device * * @return The currently set channel number */ unsigned int cc2538_get_chan(void); /** * @brief Check if device is in monitor (promiscuous) mode * * @return True if device is in monitor mode * @return False if device is not in monitor mode */ bool cc2538_get_monitor(void); /** * @brief Get the configured PAN ID of the device * * @return The currently set PAN ID */ uint16_t cc2538_get_pan(void); /** * @brief Get the configured transmission power of the device * * @return The currently configured transmission power in dBm */ int cc2538_get_tx_power(void); /** * @brief Initialise the CC2538 radio hardware * */ void cc2538_init(void); /** * @brief Check if device is active * * @return True if device is active * @return False if device is not active */ bool cc2538_is_on(void); /** * @brief Deactivate the CC2538 radio device * */ void cc2538_off(void); /** * @brief Activate the CC2538 radio device * */ bool cc2538_on(void); /** * @brief Setup a CC2538 radio device for use with netdev * * @param[out] dev Device descriptor */ void cc2538_setup(cc2538_rf_t *dev); /** * @brief Set the short address of the device * * @param[in] addr (2-byte) short address to set */ void cc2538_set_addr_short(uint16_t addr); /** * @brief Set the long address of the device * * @param[in] addr (8-byte) short address to set */ void cc2538_set_addr_long(uint64_t addr); /** * @brief Set the channel number of the device * * @param[in] chan Channel number to set */ void cc2538_set_chan(unsigned int chan); /** * @brief Set the frequency of the device * * @param[in] MHz Frequency to set in MHz */ void cc2538_set_freq(unsigned int MHz); /** * @brief Enable/disable monitor (promiscuous) mode for the device * * @param[in] mode True for enable, false for disable */ void cc2538_set_monitor(bool mode); /** * @brief Set the PAN ID of the device * * @param[in] pan PAN ID to set */ void cc2538_set_pan(uint16_t pan); /** * @brief Set the state of the device * * @param[out] dev Device descriptor * @param[in] state State to set device to */ void cc2538_set_state(cc2538_rf_t *dev, netopt_state_t state); /** * @brief Set the transmission power for the device * * @param[in] dBm Transmission power to set in dBm */ void cc2538_set_tx_power(int dBm); #ifdef __cplusplus } #endif #endif /* CC2538_RF_H */ /** @} */