94 lines
2.3 KiB
C
94 lines
2.3 KiB
C
/*
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Copyright 2022, Savanni D'Gerinel <savanni@luminescent-dreams.com>
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This file is part of Savanni's AVR library.
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Lumeto 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 3 of the License, or (at your option) any later version.
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Lumeto 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.
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You should have received a copy of the GNU General Public License along with Lumeto. If not, see <https://www.gnu.org/licenses/>.
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*/
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#ifndef __RFM_H__
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#define __RFM_H__
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#include <dio.h>
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#include <spi.h>
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#include <stdbool.h>
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typedef enum RFM_ERROR_TYPES {
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Ok,
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radio_not_found,
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} rfm_error_e;
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typedef struct RFM {
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spi_t spi;
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dio_t irq;
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dio_t reset;
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} rfm_t;
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typedef enum packet_format {
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unlimited,
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fixed,
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variable,
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} packet_format_e;
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typedef enum MODE {
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sleep,
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standby,
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fs,
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tx,
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rx,
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listen
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} mode_e;
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/* make mode more of a state machine. define the transitions between those machines. */
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typedef struct MODE_FLAGS {
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bool listen_on;
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mode_e mode;
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} op_mode_t;
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typedef struct INTERRUPT_FLAGS {
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bool mode_ready;
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bool rx_ready;
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bool tx_ready;
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bool timeout;
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bool auto_mode;
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bool sync_addr_match;
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bool fifo_full;
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bool fifo_not_empty;
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bool fifo_level;
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bool fifo_overrun;
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bool packet_sent;
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bool payload_ready;
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bool crc_ok;
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} interrupt_flags_t;
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void rfm_init(rfm_t *, uint8_t *, size_t, rfm_error_e *);
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uint8_t sync_word(rfm_t *rfm, uint8_t sync_word[8]);
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void rfm_reset(rfm_t *);
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void rfm_packet_format(rfm_t *rfm, packet_format_e format, size_t length);
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void rfm_sleep(rfm_t *);
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void rfm_standby(rfm_t *);
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void rfm_receive_mode(rfm_t *);
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void rfm_transmit(rfm_t *rfm, uint8_t *data, uint8_t length);
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void rfm_receive(rfm_t *rfm, uint8_t data[66], uint8_t *length);
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op_mode_t rfm_mode(rfm_t *rfm);
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void rfm_set_mode(rfm_t *rfm, op_mode_t mode);
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uint8_t rfm_status(rfm_t *rfm);
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uint8_t rfm_temperature(rfm_t *rfm);
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uint32_t rfm_frequency(rfm_t *rfm);
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void rfm_listen(rfm_t *rfm);
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interrupt_flags_t rfm_interrupts(rfm_t *rfm);
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uint8_t rfm_rssi(rfm_t *rfm);
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#endif
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