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/*
* include/linux/TODO
*
* userspace interface for pi433 radio module
*
* Pi433 is a 433MHz radio module for the Raspberry Pi.
* It is based on the HopeRf Module RFM69CW. Therefore inside of this
* driver, you'll find an abstraction of the rf69 chip.
*
* If needed, this driver could be extended, to also support other
* devices, basing on HopeRfs rf69.
*
* The driver can also be extended, to support other modules of
* HopeRf with a similar interace - e. g. RFM69HCW, RFM12, RFM95, ...
* Copyright (C) 2016 Wolf-Entwicklungen
* Marcus Wolf <linux@wolf-entwicklungen.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef PI433_H
#define PI433_H
#include <linux/types.h>
#include "rf69_enum.h"
/*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/
/* IOCTL structs and commands */
/**
* struct pi433_tx_config - describes the configuration of the radio module for sending
* @frequency:
* @bit_rate:
* @modulation:
* @data_mode:
* @preamble_length:
* @sync_pattern:
* @tx_start_condition:
* @payload_length:
* @repetitions:
*
* ATTENTION:
* If the contents of 'pi433_tx_config' ever change
* incompatibly, then the ioctl number (see define below) must change.
*
* NOTE: struct layout is the same in 64bit and 32bit userspace.
*/
#define PI433_TX_CFG_IOCTL_NR 0
struct pi433_tx_cfg
{
__u32 frequency;
__u16 bit_rate;
__u32 dev_frequency;
enum modulation modulation;
enum modShaping modShaping;
enum paRamp pa_ramp;
enum txStartCondition tx_start_condition;
__u16 repetitions;
/* packet format */
enum optionOnOff enable_preamble;
enum optionOnOff enable_sync;
enum optionOnOff enable_length_byte;
enum optionOnOff enable_address_byte;
enum optionOnOff enable_crc;
__u16 preamble_length;
__u8 sync_length;
__u8 fixed_message_length;
__u8 sync_pattern[8];
__u8 address_byte;
};
/**
* struct pi433_rx_config - describes the configuration of the radio module for sending
* @frequency:
* @bit_rate:
* @modulation:
* @data_mode:
* @preamble_length:
* @sync_pattern:
* @tx_start_condition:
* @payload_length:
* @repetitions:
*
* ATTENTION:
* If the contents of 'pi433_rx_config' ever change
* incompatibly, then the ioctl number (see define below) must change
*
* NOTE: struct layout is the same in 64bit and 32bit userspace.
*/
#define PI433_RX_CFG_IOCTL_NR 1
struct pi433_rx_cfg {
__u32 frequency;
__u16 bit_rate;
__u32 dev_frequency;
enum modulation modulation;
__u8 rssi_threshold;
enum thresholdDecrement thresholdDecrement;
enum antennaImpedance antenna_impedance;
enum lnaGain lna_gain;
enum mantisse bw_mantisse; /* normal: 0x50 */
__u8 bw_exponent; /* during AFC: 0x8b */
enum dagc dagc;
/* packet format */
enum optionOnOff enable_sync;
enum optionOnOff enable_length_byte; /* should be used in combination with sync, only */
enum addressFiltering enable_address_filtering; /* operational with sync, only */
enum optionOnOff enable_crc; /* only operational, if sync on and fixed length or length byte is used */
__u8 sync_length;
__u8 fixed_message_length;
__u32 bytes_to_drop;
__u8 sync_pattern[8];
__u8 node_address;
__u8 broadcast_address;
};
#define PI433_IOC_MAGIC 'r'
#define PI433_IOC_RD_TX_CFG _IOR(PI433_IOC_MAGIC, PI433_TX_CFG_IOCTL_NR, char[sizeof(struct pi433_tx_cfg)])
#define PI433_IOC_WR_TX_CFG _IOW(PI433_IOC_MAGIC, PI433_TX_CFG_IOCTL_NR, char[sizeof(struct pi433_tx_cfg)])
#define PI433_IOC_RD_RX_CFG _IOR(PI433_IOC_MAGIC, PI433_RX_CFG_IOCTL_NR, char[sizeof(struct pi433_rx_cfg)])
#define PI433_IOC_WR_RX_CFG _IOW(PI433_IOC_MAGIC, PI433_RX_CFG_IOCTL_NR, char[sizeof(struct pi433_rx_cfg)])
#endif /* PI433_H */
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