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47 lines
1.8 KiB
47 lines
1.8 KiB
/* Copyright 2018 Jack Humbert
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef TWI2C_H
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#define TWI2C_H
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#include "ch.h"
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#include "hal.h"
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#ifndef I2C_DRIVER
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#define I2C_DRIVER I2CD1
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#endif
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#define slaveI2Caddress 0x30 /* Address in our terms - halved by later code */
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//#define myOtherI2Caddress 0x19
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I2CSlaveMsgCB twi2c_incoming_message_process, twi2c_catch_error, twi2c_clear_after_send;
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typedef void (*twi2c_message_received)(I2CDriver *, uint8_t *, uint16_t);
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void twi2c_init(void);
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uint8_t twi2c_start(void);
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uint8_t twi2c_write(uint8_t data);
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uint8_t twi2c_read_ack(void);
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uint8_t twi2c_read_nack(void);
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uint8_t twi2c_transmit(uint8_t address, uint8_t* data, uint16_t length);
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uint8_t twi2c_receive(uint8_t address, uint8_t* data, uint16_t length);
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uint8_t twi2c_writeReg(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length);
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uint8_t twi2c_readReg(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length);
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void twi2c_stop(void);
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uint8_t twi2c_reply(I2CDriver * i2cp, uint8_t * data, uint16_t length);
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uint8_t twi2c_transmit_receive(uint8_t address, uint8_t * tx_body, uint16_t tx_length, uint8_t * rx_body, uint16_t rx_length);
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uint8_t twi2c_start_listening(uint8_t address, twi2c_message_received callback);
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#endif
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