77 lines
2.0 KiB
C
77 lines
2.0 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 "drivers/io_types.h"
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#include "drivers/rcc_types.h"
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#define I2C_SHORT_TIMEOUT ((uint32_t)0x1000)
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#define I2C_LONG_TIMEOUT ((uint32_t)(10 * I2C_SHORT_TIMEOUT))
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#define I2C_DEFAULT_TIMEOUT I2C_SHORT_TIMEOUT
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#define I2C_PIN_SEL_MAX 3
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typedef struct i2cHardware_s {
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I2CDevice device;
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I2C_TypeDef *reg;
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ioTag_t sclPins[I2C_PIN_SEL_MAX];
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ioTag_t sdaPins[I2C_PIN_SEL_MAX];
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rccPeriphTag_t rcc;
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#if !defined(STM32F303xC)
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uint8_t ev_irq;
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uint8_t er_irq;
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#endif
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} i2cHardware_t;
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extern const i2cHardware_t i2cHardware[];
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#if defined(STM32F1) || defined(STM32F4)
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typedef struct i2cState_s {
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volatile bool error;
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volatile bool busy;
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volatile uint8_t addr;
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volatile uint8_t reg;
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volatile uint8_t bytes;
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volatile uint8_t writing;
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volatile uint8_t reading;
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volatile uint8_t* write_p;
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volatile uint8_t* read_p;
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} i2cState_t;
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#endif
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typedef struct i2cDevice_s {
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const i2cHardware_t *hardware;
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I2C_TypeDef *reg;
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IO_t scl;
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IO_t sda;
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bool overClock;
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bool pullUp;
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// MCU/Driver dependent member follows
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#if defined(STM32F1) || defined(STM32F4)
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i2cState_t state;
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#endif
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#ifdef USE_HAL_DRIVER
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I2C_HandleTypeDef handle;
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#endif
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} i2cDevice_t;
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extern i2cDevice_t i2cDevice[];
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