60807efc85
Other SPI modes are not supported. From doc: "The MRF24J40 supports SPI (mode 0,0) which requires that SCK idles in a low state."
213 lines
7.1 KiB
C
213 lines
7.1 KiB
C
/****************************************************************************
|
|
* drivers/wireless/ieee802154/mrf24j40/mrf24j40.h
|
|
*
|
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
|
* contributor license agreements. See the NOTICE file distributed with
|
|
* this work for additional information regarding copyright ownership. The
|
|
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
|
* "License"); you may not use this file except in compliance with the
|
|
* License. You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
* License for the specific language governing permissions and limitations
|
|
* under the License.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifndef __DRIVERS_WIRELESS_IEEE802154_MRF24J40_MRF24J40_H
|
|
#define __DRIVERS_WIRELESS_IEEE802154_MRF24J40_MRF24J40_H
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
|
|
#include <stdint.h>
|
|
#include <stdbool.h>
|
|
|
|
#include <nuttx/mutex.h>
|
|
#include <nuttx/wqueue.h>
|
|
#include <nuttx/spi/spi.h>
|
|
|
|
#include <nuttx/wireless/ieee802154/ieee802154_mac.h>
|
|
#include <nuttx/wireless/ieee802154/ieee802154_radio.h>
|
|
|
|
/****************************************************************************
|
|
* Pre-processor Definitions
|
|
****************************************************************************/
|
|
|
|
#define MRF24J40_GTS_SLOTS 2
|
|
|
|
/* Definitions for the device structure */
|
|
|
|
#define MRF24J40_RXMODE_NORMAL 0
|
|
#define MRF24J40_RXMODE_PROMISC 1
|
|
#define MRF24J40_RXMODE_NOCRC 2
|
|
|
|
#define MRF24J40_MODE_DEVICE 0
|
|
#define MRF24J40_MODE_COORD 1
|
|
#define MRF24J40_MODE_PANCOORD 2
|
|
|
|
/* Definitions for PA control on high power modules */
|
|
|
|
#define MRF24J40_PA_AUTO 1
|
|
#define MRF24J40_PA_ED 2
|
|
#define MRF24J40_PA_SLEEP 3
|
|
|
|
/* Formula for calculating default macMaxFrameWaitTime is on pg. 130
|
|
*
|
|
* For PHYs other than CSS and UWB, the attribute phyMaxFrameDuration
|
|
* is given by:
|
|
*
|
|
* phyMaxFrameDuration = phySHRDuration +
|
|
* ceiling([aMaxPHYPacketSize + 1] x
|
|
* phySymbolsPerOctet)
|
|
*
|
|
* where ceiling() is a function that returns the smallest integer value
|
|
* greater than or equal to its argument value. [1] pg. 158
|
|
*/
|
|
|
|
#define MRF24J40_DEFAULT_MAX_FRAME_WAITTIME 1824
|
|
|
|
#define MRF24J40_SYMBOL_DURATION_PS 16000000
|
|
|
|
#define MRF24J40_SPIMODE SPIDEV_MODE0
|
|
|
|
/* Clock configuration macros */
|
|
|
|
#define MRF24J40_BEACONINTERVAL_NSEC(beaconorder) \
|
|
(IEEE802154_BASE_SUPERFRAME_DURATION * (1 << beaconorder) * (16 * 1000))
|
|
|
|
#define MRF24J40_SUPERFRAMEDURATION_NSEC(sforder) \
|
|
(IEEE802154_BASE_SUPERFRAME_DURATION * (1 << sforder) * (16 * 1000))
|
|
|
|
/* Configuration ************************************************************/
|
|
|
|
#ifndef CONFIG_SCHED_HPWORK
|
|
# error High priority work queue required in this driver
|
|
#endif
|
|
|
|
#ifndef CONFIG_IEEE802154_MRF24J40_FREQUENCY
|
|
# define CONFIG_IEEE802154_MRF24J40_FREQUENCY 8000000
|
|
#endif
|
|
|
|
#ifndef CONFIG_SPI_EXCHANGE
|
|
# error CONFIG_SPI_EXCHANGE required for this driver
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Public Types
|
|
****************************************************************************/
|
|
|
|
/* A MRF24J40 device instance */
|
|
|
|
struct mrf24j40_radio_s
|
|
{
|
|
struct ieee802154_radio_s radio; /* The public device instance */
|
|
FAR struct ieee802154_radiocb_s *radiocb; /* Registered callbacks */
|
|
|
|
/* Low-level MCU-specific support */
|
|
|
|
FAR const struct mrf24j40_lower_s *lower;
|
|
FAR struct spi_dev_s *spi; /* Saved SPI interface instance */
|
|
|
|
struct work_s irqwork; /* For deferring interrupt work to work queue */
|
|
struct work_s csma_pollwork; /* For deferring poll work to the work queue */
|
|
struct work_s gts_pollwork; /* For deferring poll work to the work queue */
|
|
|
|
mutex_t lock; /* Exclusive access to this struct */
|
|
|
|
/* MAC Attributes */
|
|
|
|
struct ieee802154_addr_s addr;
|
|
|
|
uint8_t chan; /* 11 to 26 for the 2.4 GHz band */
|
|
uint8_t devmode; /* device mode: device, coord, pancoord */
|
|
uint8_t paenabled; /* enable usage of PA */
|
|
uint8_t rxmode; /* Reception mode: Main, no CRC, promiscuous */
|
|
int32_t txpower; /* TX power in mBm = dBm/100 */
|
|
struct ieee802154_cca_s cca; /* Clear channel assessement method */
|
|
uint32_t slpclkper; /* Sleep clock period (nanoseconds) */
|
|
|
|
/* MAC PIB attributes */
|
|
|
|
uint32_t max_frame_waittime;
|
|
|
|
struct ieee802154_txdesc_s *txdelayed_desc;
|
|
struct ieee802154_txdesc_s *csma_desc;
|
|
bool txdelayed_busy : 1;
|
|
bool csma_busy : 1;
|
|
bool reschedule_csma : 1;
|
|
|
|
bool rxenabled : 1;
|
|
|
|
uint8_t bsn;
|
|
|
|
struct ieee802154_txdesc_s *gts_desc[MRF24J40_GTS_SLOTS];
|
|
bool gts_busy[MRF24J40_GTS_SLOTS];
|
|
};
|
|
|
|
/****************************************************************************
|
|
* Public Data
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Inline Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: mrf24j40_spi_lock
|
|
*
|
|
* Description:
|
|
* Acquire exclusive access to the shared SPI bus.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static inline void mrf24j40_spi_lock(FAR struct spi_dev_s *spi)
|
|
{
|
|
SPI_LOCK(spi, 1);
|
|
SPI_SETBITS(spi, 8);
|
|
SPI_SETMODE(spi, MRF24J40_SPIMODE);
|
|
SPI_SETFREQUENCY(spi, CONFIG_IEEE802154_MRF24J40_FREQUENCY);
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: mrf24j40_spi_unlock
|
|
*
|
|
* Description:
|
|
* Release exclusive access to the shared SPI bus.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static inline void mrf24j40_spi_unlock(FAR struct spi_dev_s *spi)
|
|
{
|
|
SPI_LOCK(spi, 0);
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Public Function Prototypes
|
|
****************************************************************************/
|
|
|
|
int mrf24j40_interrupt(int irq, FAR void *context, FAR void *arg);
|
|
void mrf24j40_irqworker(FAR void *arg);
|
|
|
|
void mrf24j40_dopoll_csma(FAR void *arg);
|
|
void mrf24j40_dopoll_gts(FAR void *arg);
|
|
|
|
void mrf24j40_norm_setup(FAR struct mrf24j40_radio_s *dev,
|
|
FAR struct iob_s *frame, bool csma);
|
|
void mrf24j40_gts_setup(FAR struct mrf24j40_radio_s *dev, uint8_t gts,
|
|
FAR struct iob_s *frame);
|
|
void mrf24j40_setup_fifo(FAR struct mrf24j40_radio_s *dev,
|
|
FAR const uint8_t *buf, uint8_t length, uint32_t fifo_addr);
|
|
|
|
void mrf24j40_norm_trigger(FAR struct mrf24j40_radio_s *dev);
|
|
void mrf24j40_beacon_trigger(FAR struct mrf24j40_radio_s *dev);
|
|
|
|
#endif /* __DRIVERS_WIRELESS_IEEE802154_MRF24J40_MRF24J40_H */
|