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Configurable I2C (rework)

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This commit is contained in:
jflyper 2017-06-05 22:46:26 +09:00
parent a72f98e4f3
commit 52bfef1ea5
39 changed files with 1195 additions and 384 deletions
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76
src/main/drivers/bus_i2c_impl.h Normal file
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/*
* This file is part of Cleanflight.
*
* Cleanflight 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.
*
* Cleanflight 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.
*
* You should have received a copy of the GNU General Public License
* along with Cleanflight. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include "platform.h"
#include "drivers/io_types.h"
#include "drivers/rcc_types.h"
#define I2C_SHORT_TIMEOUT ((uint32_t)0x1000)
#define I2C_LONG_TIMEOUT ((uint32_t)(10 * I2C_SHORT_TIMEOUT))
#define I2C_DEFAULT_TIMEOUT I2C_SHORT_TIMEOUT
#define I2C_PIN_SEL_MAX 3
typedef struct i2cHardware_s {
I2CDevice device;
I2C_TypeDef *reg;
ioTag_t sclPins[I2C_PIN_SEL_MAX];
ioTag_t sdaPins[I2C_PIN_SEL_MAX];
rccPeriphTag_t rcc;
#if !defined(STM32F303xC)
uint8_t ev_irq;
uint8_t er_irq;
#endif
} i2cHardware_t;
extern const i2cHardware_t i2cHardware[];
#if defined(STM32F1) || defined(STM32F4)
typedef struct i2cState_s {
volatile bool error;
volatile bool busy;
volatile uint8_t addr;
volatile uint8_t reg;
volatile uint8_t bytes;
volatile uint8_t writing;
volatile uint8_t reading;
volatile uint8_t* write_p;
volatile uint8_t* read_p;
} i2cState_t;
#endif
typedef struct i2cDevice_s {
const i2cHardware_t *hardware;
I2C_TypeDef *reg;
IO_t scl;
IO_t sda;
bool overClock;
bool pullUp;
// MCU/Driver dependent member follows
#if defined(STM32F1) || defined(STM32F4)
i2cState_t state;
#endif
#ifdef USE_HAL_DRIVER
I2C_HandleTypeDef handle;
#endif
} i2cDevice_t;
extern i2cDevice_t i2cDevice[];