70 lines
1.9 KiB
C
70 lines
1.9 KiB
C
/*
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* This file is part of Cleanflight.
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*
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* Cleanflight 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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* Cleanflight 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 Cleanflight. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include "platform.h"
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#include "config/parameter_group.h"
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#include "drivers/io_types.h"
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#include "drivers/rcc_types.h"
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#ifndef I2C_DEVICE
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#define I2C_DEVICE I2CINVALID
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#endif
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typedef enum I2CDevice {
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I2CINVALID = -1,
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I2CDEV_1 = 0,
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I2CDEV_2,
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I2CDEV_3,
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I2CDEV_4,
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} I2CDevice;
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#if defined(STM32F1) || defined(STM32F3)
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#define I2CDEV_COUNT 2
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#elif defined(STM32F4)
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#define I2CDEV_COUNT 3
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#elif defined(STM32F7)
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#define I2CDEV_COUNT 4
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#else
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#define I2CDEV_COUNT 4
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#endif
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// Macros to convert between CLI bus number and I2CDevice.
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#define I2C_CFG_TO_DEV(x) ((x) - 1)
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#define I2C_DEV_TO_CFG(x) ((x) + 1)
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// I2C device address range in 7-bit address mode
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#define I2C_ADDR7_MIN 8
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#define I2C_ADDR7_MAX 119
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typedef struct i2cConfig_s {
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ioTag_t ioTagScl[I2CDEV_COUNT];
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ioTag_t ioTagSda[I2CDEV_COUNT];
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bool overClock[I2CDEV_COUNT];
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bool pullUp[I2CDEV_COUNT];
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} i2cConfig_t;
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void i2cHardwareConfigure(void);
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void i2cInit(I2CDevice device);
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bool i2cWriteBuffer(I2CDevice device, uint8_t addr_, uint8_t reg_, uint8_t len_, uint8_t *data);
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bool i2cWrite(I2CDevice device, uint8_t addr_, uint8_t reg, uint8_t data);
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bool i2cRead(I2CDevice device, uint8_t addr_, uint8_t reg, uint8_t len, uint8_t* buf);
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uint16_t i2cGetErrorCounter(void);
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