a12a6ab5b9
Replaces the previous approach to define bands via hardware capabilities by the standard conforming concept of channel pages. In the short term this allows us to correctly calculate the PHY specific symbol rate and several parameters that directly depend from the symbol rate and were previously not being correctly calculated for some of the drivers whose channel pages could not be represented previously: * We now support sub-nanosecond precision symbol rates for UWB. Rounding errors are being minimized by switching from a divide-then-multiply approach to a multiply-then-divide approach. * UWB HRP: symbol rate depends on channel page specific preamble symbol rate which again requires the pulse repetition value to be known * Several MAC timings are being corrected based on the now correctly calculated symbol rates, namely aTurnaroundTime, aUnitBackoffPeriod, aBaseSuperframeDuration. In the long term, this change unlocks such highly promising functional areas as UWB ranging and SUN-PHY channel hopping in the SubG area (plus of course any other PHY specific feature). Signed-off-by: Florian Grandel <fgrandel@code-for-humans.de>
89 lines
2.9 KiB
C
89 lines
2.9 KiB
C
/*
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* Copyright (c) 2019 Brett Witherspoon
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* References are to the IEEE 802.15.4-2020 standard.
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*/
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#ifndef ZEPHYR_DRIVERS_IEEE802154_IEEE802154_CC13XX_CC26XX_H_
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#define ZEPHYR_DRIVERS_IEEE802154_IEEE802154_CC13XX_CC26XX_H_
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#include <zephyr/kernel.h>
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#include <zephyr/net/net_if.h>
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#include <zephyr/net/ieee802154.h>
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#include <zephyr/net/ieee802154_radio.h>
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#include <ti/drivers/rf/RF.h>
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#include <driverlib/rf_common_cmd.h>
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#include <driverlib/rf_data_entry.h>
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#include <driverlib/rf_ieee_cmd.h>
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#include <driverlib/rf_mailbox.h>
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/* For O-QPSK the physical and MAC timing symbol rates are the same, see section 12.3.3. */
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#define IEEE802154_2450MHZ_OQPSK_SYMBOLS_PER_SECOND \
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IEEE802154_PHY_SYMBOLS_PER_SECOND(IEEE802154_PHY_OQPSK_780_TO_2450MHZ_SYMBOL_PERIOD_NS)
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/* PHY PIB attribute phyCcaMode - CCA Mode 3: Carrier sense with energy above threshold, see
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* section 11.3, table 11-2 and section 10.2.8
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*/
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#define IEEE802154_PHY_CCA_MODE 3
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#define IEEE802154_PHY_SHR_DURATION 10 /* in symbols, 8 preamble and 2 SFD, see section 12.1.2 */
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#define IEEE802154_PHY_SYMBOLS_PER_OCTET 2 /* see section 12.2.1 */
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/* ACK is 2 bytes for PHY header + 2 bytes MAC header + 2 bytes MAC footer */
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#define IEEE802154_ACK_FRAME_OCTETS 6
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/* IEEE 802.15.4-2006 MAC PIB attributes (7.4.2)
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*
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* The macAckWaitDuration attribute does not include aUnitBackoffPeriod for
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* non-beacon enabled PANs (See IEEE 802.15.4-2006 7.5.6.4.2)
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*/
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#define IEEE802154_MAC_ACK_WAIT_DURATION \
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(IEEE802154_PHY_A_TURNAROUND_TIME_DEFAULT + IEEE802154_PHY_SHR_DURATION + \
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IEEE802154_ACK_FRAME_OCTETS * IEEE802154_PHY_SYMBOLS_PER_OCTET)
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#define CC13XX_CC26XX_RAT_CYCLES_PER_SECOND 4000000
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#define CC13XX_CC26XX_NUM_RX_BUF 2
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/* Three additional bytes for length, RSSI and correlation values from CPE. */
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#define CC13XX_CC26XX_RX_BUF_SIZE (IEEE802154_MAX_PHY_PACKET_SIZE + 3)
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#define CC13XX_CC26XX_CPE0_IRQ (INT_RFC_CPE_0 - 16)
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#define CC13XX_CC26XX_CPE1_IRQ (INT_RFC_CPE_1 - 16)
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#define CC13XX_CC26XX_RECEIVER_SENSITIVITY -100
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#define CC13XX_CC26XX_INVALID_RSSI INT8_MIN
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struct ieee802154_cc13xx_cc26xx_data {
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RF_Handle rf_handle;
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RF_Object rf_object;
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struct net_if *iface;
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uint8_t mac[8]; /* in big endian */
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struct k_mutex tx_mutex;
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dataQueue_t rx_queue;
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rfc_dataEntryPointer_t rx_entry[CC13XX_CC26XX_NUM_RX_BUF];
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uint8_t rx_data[CC13XX_CC26XX_NUM_RX_BUF]
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[CC13XX_CC26XX_RX_BUF_SIZE] __aligned(4);
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volatile rfc_CMD_FS_t cmd_fs;
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volatile rfc_CMD_IEEE_CCA_REQ_t cmd_ieee_cca_req;
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volatile rfc_CMD_IEEE_RX_t cmd_ieee_rx;
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volatile rfc_CMD_IEEE_CSMA_t cmd_ieee_csma;
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volatile rfc_CMD_IEEE_TX_t cmd_ieee_tx;
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volatile rfc_CMD_IEEE_RX_ACK_t cmd_ieee_rx_ack;
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volatile rfc_CMD_RADIO_SETUP_t cmd_radio_setup;
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volatile int16_t saved_cmdhandle;
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};
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#endif /* ZEPHYR_DRIVERS_IEEE802154_IEEE802154_CC13XX_CC26XX_H_ */
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