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50 lines
1.8 KiB
C
50 lines
1.8 KiB
C
//
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// Copyright 2010 Ettus Research LLC
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//
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/*
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* Copyright 2007,2008 Free Software Foundation, Inc.
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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 3 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 INCLUDED_I2C_ASYNC_H
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#define INCLUDED_I2C_ASYNC_H
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#include <stdbool.h>
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#include "stdint.h"
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typedef enum { I2C_STATE_IDLE,
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I2C_STATE_CONTROL_BYTE_SENT,
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I2C_STATE_DATA,
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I2C_STATE_LAST_BYTE,
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I2C_STATE_DATA_READY,
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I2C_STATE_ERROR
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} i2c_state_t;
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typedef enum { I2C_DIR_WRITE=0, I2C_DIR_READ=1 } i2c_dir_t;
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bool i2c_async_read(uint8_t addr, unsigned int len);
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bool i2c_async_write(uint8_t addr, const uint8_t *buf, unsigned int len);
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bool i2c_async_data_ready(void *);
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//static void i2c_irq_handler(unsigned irq);
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void i2c_register_callback(void (*callback)(void));
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void i2c_register_handler(void);
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// Write 24LC024 / 24LC025 EEPROM on motherboard or daughterboard.
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// Which EEPROM is determined by i2c_addr. See i2c_addr.h
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bool eeprom_write_async (int i2c_addr, int eeprom_offset, const void *buf, int len, void (*callback)(void));
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bool eeprom_read_async(int i2c_addr, int eeprom_offset, void *buf, int len, void (*callback)(void));
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#endif /* INCLUDED_I2C_ASYNC_H */
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