b91448dfa4
Wait for a valid RSSI reading in CC13xx/CC26xx RF drivers
1133 lines
32 KiB
C
1133 lines
32 KiB
C
/*
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* Copyright (c) 2015, Texas Instruments Incorporated - http://www.ti.com/
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*---------------------------------------------------------------------------*/
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/**
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* \addtogroup rf-core
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* @{
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*
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* \defgroup rf-core-prop CC13xx Prop mode driver
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*
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* @{
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*
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* \file
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* Implementation of the CC13xx prop mode NETSTACK_RADIO driver
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*/
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/*---------------------------------------------------------------------------*/
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#include "contiki.h"
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#include "dev/radio.h"
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#include "dev/cc26xx-uart.h"
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#include "dev/oscillators.h"
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#include "dev/watchdog.h"
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#include "net/packetbuf.h"
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#include "net/rime/rimestats.h"
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#include "net/linkaddr.h"
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#include "net/netstack.h"
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#include "sys/energest.h"
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#include "sys/clock.h"
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#include "sys/rtimer.h"
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#include "sys/cc.h"
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#include "lpm.h"
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#include "ti-lib.h"
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#include "rf-core/rf-core.h"
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#include "rf-core/rf-ble.h"
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#include "rf-core/dot-15-4g.h"
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/*---------------------------------------------------------------------------*/
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/* RF core and RF HAL API */
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#include "hw_rfc_dbell.h"
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#include "hw_rfc_pwr.h"
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/*---------------------------------------------------------------------------*/
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/* RF Core Mailbox API */
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#include "rf-core/api/mailbox.h"
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#include "rf-core/api/common_cmd.h"
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#include "rf-core/api/data_entry.h"
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#include "rf-core/api/prop_mailbox.h"
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#include "rf-core/api/prop_cmd.h"
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/*---------------------------------------------------------------------------*/
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/* CC13xxware patches */
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#include "rf_patches/rf_patch_cpe_genfsk.h"
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/*---------------------------------------------------------------------------*/
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#include "rf-core/smartrf-settings.h"
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/*---------------------------------------------------------------------------*/
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#include <stdint.h>
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#include <string.h>
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#include <stdio.h>
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#include <stdbool.h>
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/*---------------------------------------------------------------------------*/
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#define DEBUG 0
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#if DEBUG
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#define PRINTF(...) printf(__VA_ARGS__)
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#else
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#define PRINTF(...)
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#endif
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/*---------------------------------------------------------------------------*/
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/* Data entry status field constants */
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#define DATA_ENTRY_STATUS_PENDING 0x00 /* Not in use by the Radio CPU */
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#define DATA_ENTRY_STATUS_ACTIVE 0x01 /* Open for r/w by the radio CPU */
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#define DATA_ENTRY_STATUS_BUSY 0x02 /* Ongoing r/w */
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#define DATA_ENTRY_STATUS_FINISHED 0x03 /* Free to use and to free */
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#define DATA_ENTRY_STATUS_UNFINISHED 0x04 /* Partial RX entry */
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/*---------------------------------------------------------------------------*/
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/* Data whitener. 1: Whitener, 0: No whitener */
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#ifdef PROP_MODE_CONF_DW
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#define PROP_MODE_DW PROP_MODE_CONF_DW
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#else
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#define PROP_MODE_DW 0
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#endif
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#ifdef PROP_MODE_CONF_USE_CRC16
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#define PROP_MODE_USE_CRC16 PROP_MODE_CONF_USE_CRC16
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#else
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#define PROP_MODE_USE_CRC16 0
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#endif
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/*---------------------------------------------------------------------------*/
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/**
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* \brief Returns the current status of a running Radio Op command
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* \param a A pointer with the buffer used to initiate the command
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* \return The value of the Radio Op buffer's status field
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*
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* This macro can be used to e.g. return the status of a previously
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* initiated background operation, or of an immediate command
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*/
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#define RF_RADIO_OP_GET_STATUS(a) GET_FIELD_V(a, radioOp, status)
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/*---------------------------------------------------------------------------*/
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/* Special value returned by CMD_IEEE_CCA_REQ when an RSSI is not available */
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#define RF_CMD_CCA_REQ_RSSI_UNKNOWN -128
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/* Used for the return value of channel_clear */
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#define RF_CCA_CLEAR 1
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#define RF_CCA_BUSY 0
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/* Used as an error return value for get_cca_info */
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#define RF_GET_CCA_INFO_ERROR 0xFF
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/*
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* Values of the individual bits of the ccaInfo field in CMD_IEEE_CCA_REQ's
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* status struct
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*/
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#define RF_CMD_CCA_REQ_CCA_STATE_IDLE 0 /* 00 */
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#define RF_CMD_CCA_REQ_CCA_STATE_BUSY 1 /* 01 */
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#define RF_CMD_CCA_REQ_CCA_STATE_INVALID 2 /* 10 */
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#ifdef PROP_MODE_CONF_RSSI_THRESHOLD
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#define PROP_MODE_RSSI_THRESHOLD PROP_MODE_CONF_RSSI_THRESHOLD
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#else
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#define PROP_MODE_RSSI_THRESHOLD 0xA6
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#endif
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static int8_t rssi_threshold = PROP_MODE_RSSI_THRESHOLD;
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/*---------------------------------------------------------------------------*/
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static int on(void);
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static int off(void);
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static rfc_propRxOutput_t rx_stats;
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/*---------------------------------------------------------------------------*/
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/* Defines and variables related to the .15.4g PHY HDR */
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#define DOT_4G_MAX_FRAME_LEN 2047
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#define DOT_4G_PHR_LEN 2
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/* PHY HDR bits */
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#define DOT_4G_PHR_CRC16 0x10
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#define DOT_4G_PHR_DW 0x08
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#if PROP_MODE_USE_CRC16
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/* CRC16 */
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#define DOT_4G_PHR_CRC_BIT DOT_4G_PHR_CRC16
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#define CRC_LEN 2
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#else
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/* CRC32 */
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#define DOT_4G_PHR_CRC_BIT 0
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#define CRC_LEN 4
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#endif
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#if PROP_MODE_DW
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#define DOT_4G_PHR_DW_BIT DOT_4G_PHR_DW
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#else
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#define DOT_4G_PHR_DW_BIT 0
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#endif
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/*---------------------------------------------------------------------------*/
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/* How long to wait for an ongoing ACK TX to finish before starting frame TX */
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#define TX_WAIT_TIMEOUT (RTIMER_SECOND >> 11)
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/* How long to wait for the RF to enter RX in rf_cmd_ieee_rx */
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#define ENTER_RX_WAIT_TIMEOUT (RTIMER_SECOND >> 10)
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/*---------------------------------------------------------------------------*/
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/* TX Power dBm lookup table - values from SmartRF Studio */
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typedef struct output_config {
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radio_value_t dbm;
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uint16_t tx_power; /* Value for the PROP_DIV_RADIO_SETUP.txPower field */
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} output_config_t;
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static const output_config_t output_power[] = {
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{ 14, 0xa73f },
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{ 13, 0xa73f }, /* 12.5 */
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{ 12, 0xb818 },
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{ 11, 0x50da },
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{ 10, 0x38d3 },
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{ 9, 0x2ccd },
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{ 8, 0x24cb },
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{ 7, 0x20c9 },
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{ 6, 0x1cc7 },
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{ 5, 0x18c6 },
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{ 4, 0x18c5 },
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{ 3, 0x14c4 },
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{ 2, 0x1042 },
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{ 1, 0x10c3 },
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{ 0, 0x0041 },
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{-10, 0x08c0 },
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};
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#define OUTPUT_CONFIG_COUNT (sizeof(output_power) / sizeof(output_config_t))
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/* Max and Min Output Power in dBm */
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#define OUTPUT_POWER_MIN (output_power[OUTPUT_CONFIG_COUNT - 1].dbm)
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#define OUTPUT_POWER_MAX (output_power[0].dbm)
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#define OUTPUT_POWER_UNKNOWN 0xFFFF
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/* Default TX Power - position in output_power[] */
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const output_config_t *tx_power_current = &output_power[1];
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/*---------------------------------------------------------------------------*/
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#ifdef PROP_MODE_CONF_LO_DIVIDER
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#define PROP_MODE_LO_DIVIDER PROP_MODE_CONF_LO_DIVIDER
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#else
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#define PROP_MODE_LO_DIVIDER 0x05
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#endif
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/*---------------------------------------------------------------------------*/
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#ifdef PROP_MODE_CONF_RX_BUF_CNT
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#define PROP_MODE_RX_BUF_CNT PROP_MODE_CONF_RX_BUF_CNT
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#else
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#define PROP_MODE_RX_BUF_CNT 4
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#endif
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/*---------------------------------------------------------------------------*/
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#define DATA_ENTRY_LENSZ_NONE 0
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#define DATA_ENTRY_LENSZ_BYTE 1
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#define DATA_ENTRY_LENSZ_WORD 2 /* 2 bytes */
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/*
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* RX buffers.
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* PROP_MODE_RX_BUF_CNT buffers of RX_BUF_SIZE bytes each. The start of each
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* buffer must be 4-byte aligned, therefore RX_BUF_SIZE must divide by 4
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*/
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#define RX_BUF_SIZE 140
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static uint8_t rx_buf[PROP_MODE_RX_BUF_CNT][RX_BUF_SIZE] CC_ALIGN(4);
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/* The RX Data Queue */
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static dataQueue_t rx_data_queue = { 0 };
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/* Receive entry pointer to keep track of read items */
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volatile static uint8_t *rx_read_entry;
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/*---------------------------------------------------------------------------*/
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/* The outgoing frame buffer */
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#define TX_BUF_PAYLOAD_LEN 180
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#define TX_BUF_HDR_LEN 2
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static uint8_t tx_buf[TX_BUF_HDR_LEN + TX_BUF_PAYLOAD_LEN] CC_ALIGN(4);
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/*---------------------------------------------------------------------------*/
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static uint8_t
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rf_is_on(void)
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{
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if(!rf_core_is_accessible()) {
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return 0;
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}
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return smartrf_settings_cmd_prop_rx_adv.status == RF_CORE_RADIO_OP_STATUS_ACTIVE;
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}
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/*---------------------------------------------------------------------------*/
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static uint8_t
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transmitting(void)
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{
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return smartrf_settings_cmd_prop_tx_adv.status == RF_CORE_RADIO_OP_STATUS_ACTIVE;
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}
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/*---------------------------------------------------------------------------*/
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static radio_value_t
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get_rssi(void)
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{
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uint32_t cmd_status;
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int8_t rssi;
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uint8_t attempts = 0;
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uint8_t was_off = 0;
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rfc_CMD_GET_RSSI_t cmd;
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/* If we are off, turn on first */
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if(!rf_is_on()) {
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was_off = 1;
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if(on() != RF_CORE_CMD_OK) {
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PRINTF("get_rssi: on() failed\n");
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return RF_CMD_CCA_REQ_RSSI_UNKNOWN;
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}
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}
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rssi = RF_CMD_CCA_REQ_RSSI_UNKNOWN;
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while((rssi == RF_CMD_CCA_REQ_RSSI_UNKNOWN || rssi == 0) && ++attempts < 10) {
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memset(&cmd, 0x00, sizeof(cmd));
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cmd.commandNo = CMD_GET_RSSI;
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if(rf_core_send_cmd((uint32_t)&cmd, &cmd_status) == RF_CORE_CMD_ERROR) {
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PRINTF("get_rssi: CMDSTA=0x%08lx\n", cmd_status);
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break;
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} else {
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/* Current RSSI in bits 23:16 of cmd_status */
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rssi = (cmd_status >> 16) & 0xFF;
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}
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}
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/* If we were off, turn back off */
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if(was_off) {
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off();
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}
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return rssi;
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}
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/*---------------------------------------------------------------------------*/
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static uint8_t
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get_channel(void)
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{
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uint32_t freq_khz;
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freq_khz = smartrf_settings_cmd_fs.frequency * 1000;
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/*
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* For some channels, fractFreq * 1000 / 65536 will return 324.99xx.
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* Casting the result to uint32_t will truncate decimals resulting in the
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* function returning channel - 1 instead of channel. Thus, we do a quick
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* positive integer round up.
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*/
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freq_khz += (((smartrf_settings_cmd_fs.fractFreq * 1000) + 65535) / 65536);
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return (freq_khz - DOT_15_4G_CHAN0_FREQUENCY) / DOT_15_4G_CHANNEL_SPACING;
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}
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/*---------------------------------------------------------------------------*/
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static void
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set_channel(uint8_t channel)
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{
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uint32_t new_freq;
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uint16_t freq, frac;
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new_freq = DOT_15_4G_CHAN0_FREQUENCY + (channel * DOT_15_4G_CHANNEL_SPACING);
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freq = (uint16_t)(new_freq / 1000);
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frac = (new_freq - (freq * 1000)) * 65536 / 1000;
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PRINTF("set_channel: %u = 0x%04x.0x%04x (%lu)\n", channel, freq, frac,
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new_freq);
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smartrf_settings_cmd_prop_radio_div_setup.centerFreq = freq;
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smartrf_settings_cmd_fs.frequency = freq;
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smartrf_settings_cmd_fs.fractFreq = frac;
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}
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/*---------------------------------------------------------------------------*/
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/* Returns the current TX power in dBm */
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static radio_value_t
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get_tx_power(void)
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{
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return tx_power_current->dbm;
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}
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/*---------------------------------------------------------------------------*/
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/*
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* The caller must make sure to send a new CMD_PROP_RADIO_DIV_SETP to the
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* radio after calling this function.
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*/
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static void
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set_tx_power(radio_value_t power)
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{
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int i;
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for(i = OUTPUT_CONFIG_COUNT - 1; i >= 0; --i) {
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if(power <= output_power[i].dbm) {
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/*
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* Merely save the value. It will be used in all subsequent usages of
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* CMD_PROP_RADIO_DIV_SETP, including one immediately after this function
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* has returned
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*/
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tx_power_current = &output_power[i];
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return;
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}
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}
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}
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/*---------------------------------------------------------------------------*/
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static int
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prop_div_radio_setup(void)
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{
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uint32_t cmd_status;
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rfc_radioOp_t *cmd = (rfc_radioOp_t *)&smartrf_settings_cmd_prop_radio_div_setup;
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/* Adjust loDivider depending on the selected band */
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smartrf_settings_cmd_prop_radio_div_setup.loDivider = PROP_MODE_LO_DIVIDER;
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/* Update to the correct TX power setting */
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smartrf_settings_cmd_prop_radio_div_setup.txPower = tx_power_current->tx_power;
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/* Send Radio setup to RF Core */
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if(rf_core_send_cmd((uint32_t)cmd, &cmd_status) != RF_CORE_CMD_OK) {
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PRINTF("prop_div_radio_setup: DIV_SETUP, CMDSTA=0x%08lx, status=0x%04x\n",
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cmd_status, cmd->status);
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return RF_CORE_CMD_ERROR;
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}
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/* Wait until radio setup is done */
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if(rf_core_wait_cmd_done(cmd) != RF_CORE_CMD_OK) {
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PRINTF("prop_div_radio_setup: DIV_SETUP wait, CMDSTA=0x%08lx,"
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"status=0x%04x\n", cmd_status, cmd->status);
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return RF_CORE_CMD_ERROR;
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}
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return RF_CORE_CMD_OK;
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}
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/*---------------------------------------------------------------------------*/
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static uint8_t
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rf_cmd_prop_rx()
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{
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uint32_t cmd_status;
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rtimer_clock_t t0;
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volatile rfc_CMD_PROP_RX_ADV_t *cmd_rx_adv;
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int ret;
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cmd_rx_adv = (rfc_CMD_PROP_RX_ADV_t *)&smartrf_settings_cmd_prop_rx_adv;
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cmd_rx_adv->status = RF_CORE_RADIO_OP_STATUS_IDLE;
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/*
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* Set the max Packet length. This is for the payload only, therefore
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* 2047 - length offset
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*/
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cmd_rx_adv->maxPktLen = DOT_4G_MAX_FRAME_LEN - cmd_rx_adv->lenOffset;
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ret = rf_core_send_cmd((uint32_t)cmd_rx_adv, &cmd_status);
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if(ret != RF_CORE_CMD_OK) {
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PRINTF("rf_cmd_prop_rx: send_cmd ret=%d, CMDSTA=0x%08lx, status=0x%04x\n",
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ret, cmd_status, cmd_rx_adv->status);
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return RF_CORE_CMD_ERROR;
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}
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t0 = RTIMER_NOW();
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while(cmd_rx_adv->status != RF_CORE_RADIO_OP_STATUS_ACTIVE &&
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(RTIMER_CLOCK_LT(RTIMER_NOW(), t0 + ENTER_RX_WAIT_TIMEOUT)));
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/* Wait to enter RX */
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if(cmd_rx_adv->status != RF_CORE_RADIO_OP_STATUS_ACTIVE) {
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PRINTF("rf_cmd_prop_rx: CMDSTA=0x%08lx, status=0x%04x\n",
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cmd_status, cmd_rx_adv->status);
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return RF_CORE_CMD_ERROR;
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}
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return ret;
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}
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/*---------------------------------------------------------------------------*/
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static void
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init_rx_buffers(void)
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{
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rfc_dataEntry_t *entry;
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int i;
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for(i = 0; i < PROP_MODE_RX_BUF_CNT; i++) {
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entry = (rfc_dataEntry_t *)rx_buf[i];
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entry->status = DATA_ENTRY_STATUS_PENDING;
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entry->config.type = DATA_ENTRY_TYPE_GEN;
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entry->config.lenSz = DATA_ENTRY_LENSZ_WORD;
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entry->length = RX_BUF_SIZE - 8;
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entry->pNextEntry = rx_buf[i + 1];
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}
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((rfc_dataEntry_t *)rx_buf[PROP_MODE_RX_BUF_CNT - 1])->pNextEntry = rx_buf[0];
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}
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/*---------------------------------------------------------------------------*/
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static int
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rx_on_prop(void)
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{
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int ret;
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if(rf_is_on()) {
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PRINTF("rx_on_prop: We were on. PD=%u, RX=0x%04x\n",
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rf_core_is_accessible(), smartrf_settings_cmd_prop_rx_adv.status);
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return RF_CORE_CMD_OK;
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}
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|
|
/* Put CPE in RX using the currently configured parameters */
|
|
ret = rf_cmd_prop_rx();
|
|
|
|
if(ret) {
|
|
ENERGEST_ON(ENERGEST_TYPE_LISTEN);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static int
|
|
rx_off_prop(void)
|
|
{
|
|
uint32_t cmd_status;
|
|
int ret;
|
|
|
|
/* If we are off, do nothing */
|
|
if(!rf_is_on()) {
|
|
return RF_CORE_CMD_OK;
|
|
}
|
|
|
|
/* Send a CMD_ABORT command to RF Core */
|
|
if(rf_core_send_cmd(CMDR_DIR_CMD(CMD_ABORT), &cmd_status) != RF_CORE_CMD_OK) {
|
|
PRINTF("rx_off_prop: CMD_ABORT status=0x%08lx\n", cmd_status);
|
|
/* Continue nonetheless */
|
|
}
|
|
|
|
while(rf_is_on());
|
|
|
|
if(smartrf_settings_cmd_prop_rx_adv.status == PROP_DONE_STOPPED ||
|
|
smartrf_settings_cmd_prop_rx_adv.status == PROP_DONE_ABORT) {
|
|
/* Stopped gracefully */
|
|
ENERGEST_OFF(ENERGEST_TYPE_LISTEN);
|
|
ret = RF_CORE_CMD_OK;
|
|
} else {
|
|
PRINTF("rx_off_prop: status=0x%04x\n",
|
|
smartrf_settings_cmd_prop_rx_adv.status);
|
|
ret = RF_CORE_CMD_ERROR;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static uint8_t
|
|
request(void)
|
|
{
|
|
/*
|
|
* We rely on the RDC layer to turn us on and off. Thus, if we are on we
|
|
* will only allow sleep, standby otherwise
|
|
*/
|
|
if(rf_is_on()) {
|
|
return LPM_MODE_SLEEP;
|
|
}
|
|
|
|
return LPM_MODE_MAX_SUPPORTED;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
LPM_MODULE(prop_lpm_module, request, NULL, NULL, LPM_DOMAIN_NONE);
|
|
/*---------------------------------------------------------------------------*/
|
|
static int
|
|
prop_fs(void)
|
|
{
|
|
uint32_t cmd_status;
|
|
rfc_radioOp_t *cmd = (rfc_radioOp_t *)&smartrf_settings_cmd_fs;
|
|
|
|
/* Send the command to the RF Core */
|
|
if(rf_core_send_cmd((uint32_t)cmd, &cmd_status) != RF_CORE_CMD_OK) {
|
|
PRINTF("prop_fs: CMD_FS, CMDSTA=0x%08lx, status=0x%04x\n",
|
|
cmd_status, cmd->status);
|
|
return RF_CORE_CMD_ERROR;
|
|
}
|
|
|
|
/* Wait until the command is done */
|
|
if(rf_core_wait_cmd_done(cmd) != RF_CORE_CMD_OK) {
|
|
PRINTF("prop_fs: CMD_FS wait, CMDSTA=0x%08lx, status=0x%04x\n",
|
|
cmd_status, cmd->status);
|
|
return RF_CORE_CMD_ERROR;
|
|
}
|
|
|
|
return RF_CORE_CMD_OK;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static void
|
|
soft_off_prop(void)
|
|
{
|
|
uint32_t cmd_status;
|
|
volatile rfc_radioOp_t *cmd = rf_core_get_last_radio_op();
|
|
|
|
if(!rf_core_is_accessible()) {
|
|
return;
|
|
}
|
|
|
|
/* Send a CMD_ABORT command to RF Core */
|
|
if(rf_core_send_cmd(CMDR_DIR_CMD(CMD_ABORT), &cmd_status) != RF_CORE_CMD_OK) {
|
|
PRINTF("soft_off_prop: CMD_ABORT status=0x%08lx\n", cmd_status);
|
|
return;
|
|
}
|
|
|
|
while((cmd->status & RF_CORE_RADIO_OP_MASKED_STATUS) ==
|
|
RF_CORE_RADIO_OP_MASKED_STATUS_RUNNING);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static uint8_t
|
|
soft_on_prop(void)
|
|
{
|
|
if(prop_div_radio_setup() != RF_CORE_CMD_OK) {
|
|
PRINTF("soft_on_prop: prop_div_radio_setup() failed\n");
|
|
return RF_CORE_CMD_ERROR;
|
|
}
|
|
|
|
if(prop_fs() != RF_CORE_CMD_OK) {
|
|
PRINTF("soft_on_prop: prop_fs() failed\n");
|
|
return RF_CORE_CMD_ERROR;
|
|
}
|
|
|
|
return rx_on_prop();
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static const rf_core_primary_mode_t mode_prop = {
|
|
soft_off_prop,
|
|
soft_on_prop,
|
|
};
|
|
/*---------------------------------------------------------------------------*/
|
|
static int
|
|
init(void)
|
|
{
|
|
lpm_register_module(&prop_lpm_module);
|
|
|
|
if(ti_lib_chipinfo_chip_family_is_cc13xx() == false) {
|
|
return RF_CORE_CMD_ERROR;
|
|
}
|
|
|
|
rf_core_set_modesel();
|
|
|
|
/* Initialise RX buffers */
|
|
memset(rx_buf, 0, sizeof(rx_buf));
|
|
|
|
/* Set of RF Core data queue. Circular buffer, no last entry */
|
|
rx_data_queue.pCurrEntry = rx_buf[0];
|
|
rx_data_queue.pLastEntry = NULL;
|
|
|
|
/* Initialize current read pointer to first element (used in ISR) */
|
|
rx_read_entry = rx_buf[0];
|
|
|
|
smartrf_settings_cmd_prop_rx_adv.pQueue = &rx_data_queue;
|
|
smartrf_settings_cmd_prop_rx_adv.pOutput = (uint8_t *)&rx_stats;
|
|
|
|
set_channel(RF_CORE_CHANNEL);
|
|
|
|
if(on() != RF_CORE_CMD_OK) {
|
|
PRINTF("init: on() failed\n");
|
|
return RF_CORE_CMD_ERROR;
|
|
}
|
|
|
|
ENERGEST_ON(ENERGEST_TYPE_LISTEN);
|
|
|
|
rf_core_primary_mode_register(&mode_prop);
|
|
|
|
process_start(&rf_core_process, NULL);
|
|
|
|
return 1;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static int
|
|
prepare(const void *payload, unsigned short payload_len)
|
|
{
|
|
int len = MIN(payload_len, TX_BUF_PAYLOAD_LEN);
|
|
|
|
memcpy(&tx_buf[TX_BUF_HDR_LEN], payload, len);
|
|
return 0;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static int
|
|
transmit(unsigned short transmit_len)
|
|
{
|
|
int ret;
|
|
uint8_t was_off = 0;
|
|
uint32_t cmd_status;
|
|
volatile rfc_CMD_PROP_TX_ADV_t *cmd_tx_adv;
|
|
|
|
/* Length in .15.4g PHY HDR. Includes the CRC but not the HDR itself */
|
|
uint16_t total_length;
|
|
|
|
if(!rf_is_on()) {
|
|
was_off = 1;
|
|
if(on() != RF_CORE_CMD_OK) {
|
|
PRINTF("transmit: on() failed\n");
|
|
return RADIO_TX_ERR;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Prepare the .15.4g PHY header
|
|
* MS=0, Length MSBits=0, DW and CRC configurable
|
|
* Total length = transmit_len (payload) + CRC length
|
|
*
|
|
* The Radio will flip the bits around, so tx_buf[0] must have the length
|
|
* LSBs (PHR[15:8] and tx_buf[1] will have PHR[7:0]
|
|
*/
|
|
total_length = transmit_len + CRC_LEN;
|
|
|
|
tx_buf[0] = total_length & 0xFF;
|
|
tx_buf[1] = (total_length >> 8) + DOT_4G_PHR_DW_BIT + DOT_4G_PHR_CRC_BIT;
|
|
|
|
/* Prepare the CMD_PROP_TX_ADV command */
|
|
cmd_tx_adv = (rfc_CMD_PROP_TX_ADV_t *)&smartrf_settings_cmd_prop_tx_adv;
|
|
|
|
/*
|
|
* pktLen: Total number of bytes in the TX buffer, including the header if
|
|
* one exists, but not including the CRC (which is not present in the buffer)
|
|
*/
|
|
cmd_tx_adv->pktLen = transmit_len + DOT_4G_PHR_LEN;
|
|
cmd_tx_adv->pPkt = tx_buf;
|
|
|
|
/* Abort RX */
|
|
rx_off_prop();
|
|
|
|
/* Enable the LAST_COMMAND_DONE interrupt to wake us up */
|
|
rf_core_cmd_done_en(false, false);
|
|
|
|
ret = rf_core_send_cmd((uint32_t)cmd_tx_adv, &cmd_status);
|
|
|
|
if(ret) {
|
|
/* If we enter here, TX actually started */
|
|
ENERGEST_OFF(ENERGEST_TYPE_LISTEN);
|
|
ENERGEST_ON(ENERGEST_TYPE_TRANSMIT);
|
|
|
|
watchdog_periodic();
|
|
|
|
/* Idle away while the command is running */
|
|
while((cmd_tx_adv->status & RF_CORE_RADIO_OP_MASKED_STATUS)
|
|
== RF_CORE_RADIO_OP_MASKED_STATUS_RUNNING) {
|
|
lpm_sleep();
|
|
}
|
|
|
|
if(cmd_tx_adv->status == RF_CORE_RADIO_OP_STATUS_PROP_DONE_OK) {
|
|
/* Sent OK */
|
|
RIMESTATS_ADD(lltx);
|
|
ret = RADIO_TX_OK;
|
|
} else {
|
|
/* Operation completed, but frame was not sent */
|
|
PRINTF("transmit: Not Sent OK status=0x%04x\n",
|
|
cmd_tx_adv->status);
|
|
ret = RADIO_TX_ERR;
|
|
}
|
|
} else {
|
|
/* Failure sending the CMD_PROP_TX command */
|
|
PRINTF("transmit: PROP_TX_ERR ret=%d, CMDSTA=0x%08lx, status=0x%04x\n",
|
|
ret, cmd_status, cmd_tx_adv->status);
|
|
ret = RADIO_TX_ERR;
|
|
}
|
|
|
|
/*
|
|
* Update ENERGEST state here, before a potential call to off(), which
|
|
* will correctly update it if required.
|
|
*/
|
|
ENERGEST_OFF(ENERGEST_TYPE_TRANSMIT);
|
|
ENERGEST_ON(ENERGEST_TYPE_LISTEN);
|
|
|
|
/*
|
|
* Disable LAST_FG_COMMAND_DONE interrupt. We don't really care about it
|
|
* except when we are transmitting
|
|
*/
|
|
rf_core_cmd_done_dis(false);
|
|
|
|
/* Workaround. Set status to IDLE */
|
|
cmd_tx_adv->status = RF_CORE_RADIO_OP_STATUS_IDLE;
|
|
|
|
rx_on_prop();
|
|
|
|
if(was_off) {
|
|
off();
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static int
|
|
send(const void *payload, unsigned short payload_len)
|
|
{
|
|
prepare(payload, payload_len);
|
|
return transmit(payload_len);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static int
|
|
read_frame(void *buf, unsigned short buf_len)
|
|
{
|
|
rfc_dataEntryGeneral_t *entry = (rfc_dataEntryGeneral_t *)rx_read_entry;
|
|
uint8_t *data_ptr = &entry->data;
|
|
int len = 0;
|
|
|
|
if(entry->status == DATA_ENTRY_STATUS_FINISHED) {
|
|
|
|
/*
|
|
* First 2 bytes in the data entry are the length.
|
|
* Our data entry consists of: Payload + RSSI (1 byte) + Status (1 byte)
|
|
* This length includes all of those.
|
|
*/
|
|
len = (*(uint16_t *)data_ptr);
|
|
data_ptr += 2;
|
|
len -= 2;
|
|
|
|
if(len > 0) {
|
|
if(len <= buf_len) {
|
|
memcpy(buf, data_ptr, len);
|
|
}
|
|
|
|
packetbuf_set_attr(PACKETBUF_ATTR_RSSI, (int8_t)data_ptr[len]);
|
|
packetbuf_set_attr(PACKETBUF_ATTR_LINK_QUALITY, 0x7F);
|
|
}
|
|
|
|
/* Move read entry pointer to next entry */
|
|
rx_read_entry = entry->pNextEntry;
|
|
entry->status = DATA_ENTRY_STATUS_PENDING;
|
|
}
|
|
|
|
return len;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static int
|
|
channel_clear(void)
|
|
{
|
|
uint8_t was_off = 0;
|
|
uint32_t cmd_status;
|
|
int8_t rssi = RF_CMD_CCA_REQ_RSSI_UNKNOWN;
|
|
|
|
/*
|
|
* If we are in the middle of a BLE operation, we got called by ContikiMAC
|
|
* from within an interrupt context. Indicate a clear channel
|
|
*/
|
|
if(rf_ble_is_active() == RF_BLE_ACTIVE) {
|
|
return RF_CCA_CLEAR;
|
|
}
|
|
|
|
if(!rf_core_is_accessible()) {
|
|
was_off = 1;
|
|
if(on() != RF_CORE_CMD_OK) {
|
|
PRINTF("channel_clear: on() failed\n");
|
|
if(was_off) {
|
|
off();
|
|
}
|
|
return RF_CCA_CLEAR;
|
|
}
|
|
} else {
|
|
if(transmitting()) {
|
|
PRINTF("channel_clear: called while in TX\n");
|
|
return RF_CCA_CLEAR;
|
|
}
|
|
}
|
|
|
|
while(rssi == RF_CMD_CCA_REQ_RSSI_UNKNOWN || rssi == 0) {
|
|
if(rf_core_send_cmd(CMDR_DIR_CMD(CMD_GET_RSSI), &cmd_status)
|
|
!= RF_CORE_CMD_OK) {
|
|
break;
|
|
}
|
|
/* Current RSSI in bits 23:16 of cmd_status */
|
|
rssi = (cmd_status >> 16) & 0xFF;
|
|
}
|
|
|
|
if(was_off) {
|
|
off();
|
|
}
|
|
|
|
if(rssi >= rssi_threshold) {
|
|
return RF_CCA_BUSY;
|
|
}
|
|
|
|
return RF_CCA_CLEAR;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static int
|
|
receiving_packet(void)
|
|
{
|
|
if(!rf_is_on()) {
|
|
return 0;
|
|
}
|
|
|
|
if(channel_clear() == RF_CCA_CLEAR) {
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static int
|
|
pending_packet(void)
|
|
{
|
|
int rv = 0;
|
|
volatile rfc_dataEntry_t *entry = (rfc_dataEntry_t *)rx_data_queue.pCurrEntry;
|
|
|
|
/* Go through all RX buffers and check their status */
|
|
do {
|
|
if(entry->status == DATA_ENTRY_STATUS_FINISHED) {
|
|
rv += 1;
|
|
process_poll(&rf_core_process);
|
|
}
|
|
|
|
entry = (rfc_dataEntry_t *)entry->pNextEntry;
|
|
} while(entry != (rfc_dataEntry_t *)rx_data_queue.pCurrEntry);
|
|
|
|
/* If we didn't find an entry at status finished, no frames are pending */
|
|
return rv;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static int
|
|
on(void)
|
|
{
|
|
/*
|
|
* If we are in the middle of a BLE operation, we got called by ContikiMAC
|
|
* from within an interrupt context. Abort, but pretend everything is OK.
|
|
*/
|
|
if(rf_ble_is_active() == RF_BLE_ACTIVE) {
|
|
return RF_CORE_CMD_OK;
|
|
}
|
|
|
|
/*
|
|
* Request the HF XOSC as the source for the HF clock. Needed before we can
|
|
* use the FS. This will only request, it will _not_ perform the switch.
|
|
*/
|
|
oscillators_request_hf_xosc();
|
|
|
|
if(rf_is_on()) {
|
|
PRINTF("on: We were on. PD=%u, RX=0x%04x \n", rf_core_is_accessible(),
|
|
smartrf_settings_cmd_prop_rx_adv.status);
|
|
return RF_CORE_CMD_OK;
|
|
}
|
|
|
|
if(!rf_core_is_accessible()) {
|
|
if(rf_core_power_up() != RF_CORE_CMD_OK) {
|
|
PRINTF("on: rf_core_power_up() failed\n");
|
|
|
|
rf_core_power_down();
|
|
|
|
return RF_CORE_CMD_ERROR;
|
|
}
|
|
|
|
rf_patch_cpe_genfsk();
|
|
|
|
if(rf_core_start_rat() != RF_CORE_CMD_OK) {
|
|
PRINTF("on: rf_core_start_rat() failed\n");
|
|
|
|
rf_core_power_down();
|
|
|
|
return RF_CORE_CMD_ERROR;
|
|
}
|
|
}
|
|
|
|
rf_core_setup_interrupts(false);
|
|
|
|
init_rx_buffers();
|
|
|
|
/*
|
|
* Trigger a switch to the XOSC, so that we can subsequently use the RF FS
|
|
* This will block until the XOSC is actually ready, but give how we
|
|
* requested it early on, this won't be too long a wait/
|
|
*/
|
|
oscillators_switch_to_hf_xosc();
|
|
|
|
if(prop_div_radio_setup() != RF_CORE_CMD_OK) {
|
|
PRINTF("on: prop_div_radio_setup() failed\n");
|
|
return RF_CORE_CMD_ERROR;
|
|
}
|
|
|
|
if(prop_fs() != RF_CORE_CMD_OK) {
|
|
PRINTF("on: prop_fs() failed\n");
|
|
return RF_CORE_CMD_ERROR;
|
|
}
|
|
|
|
return rx_on_prop();
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static int
|
|
off(void)
|
|
{
|
|
/*
|
|
* If we are in the middle of a BLE operation, we got called by ContikiMAC
|
|
* from within an interrupt context. Abort, but pretend everything is OK.
|
|
*/
|
|
if(rf_ble_is_active() == RF_BLE_ACTIVE) {
|
|
return RF_CORE_CMD_OK;
|
|
}
|
|
|
|
rx_off_prop();
|
|
rf_core_power_down();
|
|
|
|
ENERGEST_OFF(ENERGEST_TYPE_LISTEN);
|
|
|
|
/* Switch HF clock source to the RCOSC to preserve power */
|
|
oscillators_switch_to_hf_rc();
|
|
|
|
/* We pulled the plug, so we need to restore the status manually */
|
|
smartrf_settings_cmd_prop_rx_adv.status = RF_CORE_RADIO_OP_STATUS_IDLE;
|
|
|
|
return RF_CORE_CMD_OK;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static radio_result_t
|
|
get_value(radio_param_t param, radio_value_t *value)
|
|
{
|
|
if(!value) {
|
|
return RADIO_RESULT_INVALID_VALUE;
|
|
}
|
|
|
|
switch(param) {
|
|
case RADIO_PARAM_POWER_MODE:
|
|
/* On / off */
|
|
*value = rf_is_on() ? RADIO_POWER_MODE_ON : RADIO_POWER_MODE_OFF;
|
|
return RADIO_RESULT_OK;
|
|
case RADIO_PARAM_CHANNEL:
|
|
*value = (radio_value_t)get_channel();
|
|
return RADIO_RESULT_OK;
|
|
case RADIO_PARAM_TXPOWER:
|
|
*value = get_tx_power();
|
|
return RADIO_RESULT_OK;
|
|
case RADIO_PARAM_CCA_THRESHOLD:
|
|
*value = rssi_threshold;
|
|
return RADIO_RESULT_OK;
|
|
case RADIO_PARAM_RSSI:
|
|
*value = get_rssi();
|
|
|
|
if(*value == RF_CMD_CCA_REQ_RSSI_UNKNOWN) {
|
|
return RADIO_RESULT_ERROR;
|
|
} else {
|
|
return RADIO_RESULT_OK;
|
|
}
|
|
case RADIO_CONST_CHANNEL_MIN:
|
|
*value = 0;
|
|
return RADIO_RESULT_OK;
|
|
case RADIO_CONST_CHANNEL_MAX:
|
|
*value = DOT_15_4G_CHANNEL_MAX;
|
|
return RADIO_RESULT_OK;
|
|
case RADIO_CONST_TXPOWER_MIN:
|
|
*value = OUTPUT_POWER_MIN;
|
|
return RADIO_RESULT_OK;
|
|
case RADIO_CONST_TXPOWER_MAX:
|
|
*value = OUTPUT_POWER_MAX;
|
|
return RADIO_RESULT_OK;
|
|
default:
|
|
return RADIO_RESULT_NOT_SUPPORTED;
|
|
}
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static radio_result_t
|
|
set_value(radio_param_t param, radio_value_t value)
|
|
{
|
|
uint8_t was_off = 0;
|
|
radio_result_t rv = RADIO_RESULT_OK;
|
|
|
|
switch(param) {
|
|
case RADIO_PARAM_POWER_MODE:
|
|
if(value == RADIO_POWER_MODE_ON) {
|
|
if(on() != RF_CORE_CMD_OK) {
|
|
PRINTF("set_value: on() failed (1)\n");
|
|
return RADIO_RESULT_ERROR;
|
|
}
|
|
return RADIO_RESULT_OK;
|
|
}
|
|
if(value == RADIO_POWER_MODE_OFF) {
|
|
off();
|
|
return RADIO_RESULT_OK;
|
|
}
|
|
return RADIO_RESULT_INVALID_VALUE;
|
|
case RADIO_PARAM_CHANNEL:
|
|
if(value < 0 ||
|
|
value > DOT_15_4G_CHANNEL_MAX) {
|
|
return RADIO_RESULT_INVALID_VALUE;
|
|
}
|
|
|
|
if(get_channel() == (uint8_t)value) {
|
|
/* We already have that very same channel configured.
|
|
* Nothing to do here. */
|
|
return RADIO_RESULT_OK;
|
|
}
|
|
|
|
set_channel((uint8_t)value);
|
|
break;
|
|
case RADIO_PARAM_TXPOWER:
|
|
if(value < OUTPUT_POWER_MIN || value > OUTPUT_POWER_MAX) {
|
|
return RADIO_RESULT_INVALID_VALUE;
|
|
}
|
|
|
|
soft_off_prop();
|
|
|
|
set_tx_power(value);
|
|
|
|
if(soft_on_prop() != RF_CORE_CMD_OK) {
|
|
PRINTF("set_value: soft_on_prop() failed\n");
|
|
rv = RADIO_RESULT_ERROR;
|
|
}
|
|
|
|
return RADIO_RESULT_OK;
|
|
case RADIO_PARAM_RX_MODE:
|
|
return RADIO_RESULT_OK;
|
|
case RADIO_PARAM_CCA_THRESHOLD:
|
|
rssi_threshold = (int8_t)value;
|
|
break;
|
|
default:
|
|
return RADIO_RESULT_NOT_SUPPORTED;
|
|
}
|
|
|
|
/* If we reach here we had no errors. Apply new settings */
|
|
if(!rf_is_on()) {
|
|
was_off = 1;
|
|
if(on() != RF_CORE_CMD_OK) {
|
|
PRINTF("set_value: on() failed (2)\n");
|
|
return RADIO_RESULT_ERROR;
|
|
}
|
|
}
|
|
|
|
if(rx_off_prop() != RF_CORE_CMD_OK) {
|
|
PRINTF("set_value: rx_off_prop() failed\n");
|
|
rv = RADIO_RESULT_ERROR;
|
|
}
|
|
|
|
if(soft_on_prop() != RF_CORE_CMD_OK) {
|
|
PRINTF("set_value: rx_on_prop() failed\n");
|
|
rv = RADIO_RESULT_ERROR;
|
|
}
|
|
|
|
/* If we were off, turn back off */
|
|
if(was_off) {
|
|
off();
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static radio_result_t
|
|
get_object(radio_param_t param, void *dest, size_t size)
|
|
{
|
|
return RADIO_RESULT_NOT_SUPPORTED;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static radio_result_t
|
|
set_object(radio_param_t param, const void *src, size_t size)
|
|
{
|
|
return RADIO_RESULT_NOT_SUPPORTED;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
const struct radio_driver prop_mode_driver = {
|
|
init,
|
|
prepare,
|
|
transmit,
|
|
send,
|
|
read_frame,
|
|
channel_clear,
|
|
receiving_packet,
|
|
pending_packet,
|
|
on,
|
|
off,
|
|
get_value,
|
|
set_value,
|
|
get_object,
|
|
set_object,
|
|
};
|
|
/*---------------------------------------------------------------------------*/
|
|
/**
|
|
* @}
|
|
* @}
|
|
*/
|